{
  "status": "partial",
  "applicable_count": 1,
  "completed_count": 34,
  "failed_count": 2,
  "schema_version": 2,
  "config_hash": "ce33f24ce9c44fae",
  "data": {
    "per_fp": {
      "fp_l02_dining_hall": {
        "fp_id": "fp_l02_dining_hall",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l02_dining_hall",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 5,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 2,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 7,
              "col": 7,
              "kind": "base_structural_unit"
            },
            {
              "number": 4,
              "row": 7,
              "col": 4,
              "kind": "base_opening"
            },
            {
              "number": 5,
              "row": 8,
              "col": 2,
              "kind": "base_opening"
            },
            {
              "number": 6,
              "row": 8,
              "col": 7,
              "kind": "base_opening"
            },
            {
              "number": 7,
              "row": 2,
              "col": 4,
              "kind": "base_opening"
            },
            {
              "number": 8,
              "row": 3,
              "col": 4,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 9,
              "row": 6,
              "col": 2,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 10,
              "row": 6,
              "col": 7,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 11,
              "row": 3,
              "col": 2,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 12,
              "row": 4,
              "col": 8,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 13,
              "row": 1,
              "col": 5,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 14,
              "row": 2,
              "col": 7,
              "kind": "base_persistent_fixture"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [
            "observed_markers[6] cell (2,4) shares a 10x10 cell with marker #2 (W20E6-A: surfaced as diagnostic, not a hard blocker -- distinct marker numbers may genuinely occupy the same coarse cell)"
          ],
          "cell_collision_diagnostics": [
            "observed_markers[6] cell (2,4) shares a 10x10 cell with marker #2 (W20E6-A: surfaced as diagnostic, not a hard blocker -- distinct marker numbers may genuinely occupy the same coarse cell)"
          ],
          "provider_name": "litellm_gpt55_vision_v1"
        },
        "geometry": {
          "fp_id": "fp_l02_dining_hall",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              5,
              4
            ],
            "2": [
              2,
              4
            ],
            "3": [
              7,
              7
            ],
            "4": [
              7,
              4
            ],
            "5": [
              8,
              2
            ],
            "6": [
              8,
              7
            ],
            "7": [
              2,
              4
            ],
            "8": [
              3,
              4
            ],
            "9": [
              6,
              2
            ],
            "10": [
              6,
              7
            ],
            "11": [
              3,
              2
            ],
            "12": [
              4,
              8
            ],
            "13": [
              1,
              5
            ],
            "14": [
              2,
              7
            ]
          },
          "unit_marker_cells": {
            "1": [
              5,
              4
            ],
            "2": [
              2,
              4
            ],
            "3": [
              7,
              7
            ]
          },
          "opening_marker_cells": {
            "4": [
              7,
              4
            ],
            "5": [
              8,
              2
            ],
            "6": [
              8,
              7
            ],
            "7": [
              2,
              4
            ]
          },
          "fixture_marker_cells": {
            "13": [
              1,
              5
            ],
            "14": [
              2,
              7
            ]
          },
          "furniture_marker_cells": {
            "8": [
              3,
              4
            ],
            "9": [
              6,
              2
            ],
            "10": [
              6,
              7
            ],
            "11": [
              3,
              2
            ],
            "12": [
              4,
              8
            ]
          },
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                5,
                4
              ]
            ],
            "2": [
              [
                2,
                4
              ]
            ],
            "3": [
              [
                7,
                7
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                1,
                5
              ],
              [
                2,
                4
              ],
              [
                2,
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              ],
              [
                3,
                2
              ],
              [
                3,
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              ],
              [
                4,
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              ],
              [
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              ],
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              ],
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              ],
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              ]
            ],
            "2": [
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              ],
              [
                2,
                4
              ],
              [
                2,
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              ],
              [
                3,
                2
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                3,
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              ],
              [
                4,
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              ],
              [
                6,
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              ],
              [
                6,
                7
              ],
              [
                7,
                4
              ],
              [
                8,
                2
              ],
              [
                8,
                7
              ]
            ],
            "3": [
              [
                1,
                5
              ],
              [
                2,
                4
              ],
              [
                2,
                7
              ],
              [
                3,
                2
              ],
              [
                3,
                4
              ],
              [
                4,
                8
              ],
              [
                6,
                2
              ],
              [
                6,
                7
              ],
              [
                7,
                4
              ],
              [
                8,
                2
              ],
              [
                8,
                7
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                2,
                4
              ],
              "dx": 0,
              "dy": -3,
              "length_l1": 3
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                7
              ],
              "dx": 3,
              "dy": 2,
              "length_l1": 5
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                2,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                4
              ],
              "dx": 0,
              "dy": 3,
              "length_l1": 3
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                2,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
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                7
              ],
              "dx": 3,
              "dy": 5,
              "length_l1": 8
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                7
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                4
              ],
              "dx": -3,
              "dy": -2,
              "length_l1": 5
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                7
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                2,
                4
              ],
              "dx": -3,
              "dy": -5,
              "length_l1": 8
            }
          ],
          "view_cone_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                2,
                4
              ],
              "dx": 0,
              "dy": -3,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                2,
                4
              ],
              "dx": 0,
              "dy": -3,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                2,
                4
              ],
              "dx": 0,
              "dy": -3,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                7
              ],
              "dx": 3,
              "dy": 2,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                7
              ],
              "dx": 3,
              "dy": 2,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                7
              ],
              "dx": 3,
              "dy": 2,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                2,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                4
              ],
              "dx": 0,
              "dy": 3,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                2,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                4
              ],
              "dx": 0,
              "dy": 3,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                2,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                4
              ],
              "dx": 0,
              "dy": 3,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                2,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                7
              ],
              "dx": 3,
              "dy": 5,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                2,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                7
              ],
              "dx": 3,
              "dy": 5,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                2,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                7
              ],
              "dx": 3,
              "dy": 5,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                7
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                4
              ],
              "dx": -3,
              "dy": -2,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                7
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                4
              ],
              "dx": -3,
              "dy": -2,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                7
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                4
              ],
              "dx": -3,
              "dy": -2,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                7
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                2,
                4
              ],
              "dx": -3,
              "dy": -5,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                7
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                2,
                4
              ],
              "dx": -3,
              "dy": -5,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                7
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                2,
                4
              ],
              "dx": -3,
              "dy": -5,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
              2,
              3
            ],
            "2": [
              1,
              3
            ],
            "3": [
              1,
              2
            ]
          },
          "visible_openings_candidates": {
            "1": [
              4,
              5,
              6,
              7
            ],
            "2": [
              4,
              5,
              6,
              7
            ],
            "3": [
              4,
              5,
              6,
              7
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [
            "observed_marker #7 shares 10x10 cell (2,4) with marker #2 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ],
          "diagnostics": [
            "observed_marker #7 shares 10x10 cell (2,4) with marker #2 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ]
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_l02_dining_hall.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_old_house_main": {
        "fp_id": "fp_old_house_main",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_old_house_main",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 4,
              "col": 1,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 4,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 4,
              "col": 8,
              "kind": "base_structural_unit"
            },
            {
              "number": 4,
              "row": 8,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 5,
              "row": 4,
              "col": 3,
              "kind": "base_opening"
            },
            {
              "number": 6,
              "row": 3,
              "col": 7,
              "kind": "base_opening"
            },
            {
              "number": 7,
              "row": 7,
              "col": 4,
              "kind": "base_opening"
            },
            {
              "number": 8,
              "row": 6,
              "col": 5,
              "kind": "base_opening"
            },
            {
              "number": 9,
              "row": 0,
              "col": 2,
              "kind": "base_opening"
            },
            {
              "number": 10,
              "row": 3,
              "col": 1,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 11,
              "row": 3,
              "col": 3,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 12,
              "row": 6,
              "col": 1,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 13,
              "row": 6,
              "col": 0,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 14,
              "row": 6,
              "col": 2,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 15,
              "row": 2,
              "col": 8,
              "kind": "base_persistent_fixture"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [],
          "cell_collision_diagnostics": [],
          "provider_name": "litellm_gpt55_vision_v1"
        },
        "geometry": {
          "fp_id": "fp_old_house_main",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              4,
              1
            ],
            "2": [
              4,
              5
            ],
            "3": [
              4,
              8
            ],
            "4": [
              8,
              5
            ],
            "5": [
              4,
              3
            ],
            "6": [
              3,
              7
            ],
            "7": [
              7,
              4
            ],
            "8": [
              6,
              5
            ],
            "9": [
              0,
              2
            ],
            "10": [
              3,
              1
            ],
            "11": [
              3,
              3
            ],
            "12": [
              6,
              1
            ],
            "13": [
              6,
              0
            ],
            "14": [
              6,
              2
            ],
            "15": [
              2,
              8
            ]
          },
          "unit_marker_cells": {
            "1": [
              4,
              1
            ],
            "2": [
              4,
              5
            ],
            "3": [
              4,
              8
            ],
            "4": [
              8,
              5
            ]
          },
          "opening_marker_cells": {
            "5": [
              4,
              3
            ],
            "6": [
              3,
              7
            ],
            "7": [
              7,
              4
            ],
            "8": [
              6,
              5
            ],
            "9": [
              0,
              2
            ]
          },
          "fixture_marker_cells": {
            "13": [
              6,
              0
            ],
            "14": [
              6,
              2
            ],
            "15": [
              2,
              8
            ]
          },
          "furniture_marker_cells": {
            "10": [
              3,
              1
            ],
            "11": [
              3,
              3
            ],
            "12": [
              6,
              1
            ]
          },
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                4,
                1
              ]
            ],
            "2": [
              [
                4,
                5
              ]
            ],
            "3": [
              [
                4,
                8
              ]
            ],
            "4": [
              [
                8,
                5
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                0,
                2
              ],
              [
                2,
                8
              ],
              [
                3,
                1
              ],
              [
                3,
                3
              ],
              [
                3,
                7
              ],
              [
                4,
                3
              ],
              [
                6,
                0
              ],
              [
                6,
                1
              ],
              [
                6,
                2
              ],
              [
                6,
                5
              ],
              [
                7,
                4
              ]
            ],
            "2": [
              [
                0,
                2
              ],
              [
                2,
                8
              ],
              [
                3,
                1
              ],
              [
                3,
                3
              ],
              [
                3,
                7
              ],
              [
                4,
                3
              ],
              [
                6,
                0
              ],
              [
                6,
                1
              ],
              [
                6,
                2
              ],
              [
                6,
                5
              ],
              [
                7,
                4
              ]
            ],
            "3": [
              [
                0,
                2
              ],
              [
                2,
                8
              ],
              [
                3,
                1
              ],
              [
                3,
                3
              ],
              [
                3,
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              ],
              [
                4,
                3
              ],
              [
                6,
                0
              ],
              [
                6,
                1
              ],
              [
                6,
                2
              ],
              [
                6,
                5
              ],
              [
                7,
                4
              ]
            ],
            "4": [
              [
                0,
                2
              ],
              [
                2,
                8
              ],
              [
                3,
                1
              ],
              [
                3,
                3
              ],
              [
                3,
                7
              ],
              [
                4,
                3
              ],
              [
                6,
                0
              ],
              [
                6,
                1
              ],
              [
                6,
                2
              ],
              [
                6,
                5
              ],
              [
                7,
                4
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                1
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                4,
                5
              ],
              "dx": 4,
              "dy": 0,
              "length_l1": 4
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                1
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                4,
                8
              ],
              "dx": 7,
              "dy": 0,
              "length_l1": 7
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                1
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
                5
              ],
              "dx": 4,
              "dy": 4,
              "length_l1": 8
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                4,
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              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                1
              ],
              "dx": -4,
              "dy": 0,
              "length_l1": 4
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                4,
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              ],
              "look_at_unit": 3,
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              ],
              "dx": 3,
              "dy": 0,
              "length_l1": 3
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                4,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
                5
              ],
              "dx": 0,
              "dy": 4,
              "length_l1": 4
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                4,
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              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                1
              ],
              "dx": -7,
              "dy": 0,
              "length_l1": 7
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                4,
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              ],
              "look_at_unit": 2,
              "look_at_cell": [
                4,
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              ],
              "dx": -3,
              "dy": 0,
              "length_l1": 3
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                4,
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              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
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              ],
              "dx": -3,
              "dy": 4,
              "length_l1": 7
            },
            {
              "camera_unit": 4,
              "camera_cell": [
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              ],
              "look_at_unit": 1,
              "look_at_cell": [
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              ],
              "dx": -4,
              "dy": -4,
              "length_l1": 8
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                4,
                5
              ],
              "dx": 0,
              "dy": -4,
              "length_l1": 4
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                4,
                8
              ],
              "dx": 3,
              "dy": -4,
              "length_l1": 7
            }
          ],
          "view_cone_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                1
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                4,
                5
              ],
              "dx": 4,
              "dy": 0,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                1
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                4,
                5
              ],
              "dx": 4,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                1
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                4,
                5
              ],
              "dx": 4,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                1
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                4,
                8
              ],
              "dx": 7,
              "dy": 0,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                1
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                4,
                8
              ],
              "dx": 7,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                1
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                4,
                8
              ],
              "dx": 7,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                1
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
                5
              ],
              "dx": 4,
              "dy": 4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                1
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
                5
              ],
              "dx": 4,
              "dy": 4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                1
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
                5
              ],
              "dx": 4,
              "dy": 4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                4,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                1
              ],
              "dx": -4,
              "dy": 0,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                4,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                1
              ],
              "dx": -4,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                4,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                1
              ],
              "dx": -4,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                4,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                4,
                8
              ],
              "dx": 3,
              "dy": 0,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                4,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                4,
                8
              ],
              "dx": 3,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                4,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                4,
                8
              ],
              "dx": 3,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                4,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
                5
              ],
              "dx": 0,
              "dy": 4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                4,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
                5
              ],
              "dx": 0,
              "dy": 4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                4,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
                5
              ],
              "dx": 0,
              "dy": 4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                4,
                8
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                1
              ],
              "dx": -7,
              "dy": 0,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                4,
                8
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                1
              ],
              "dx": -7,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                4,
                8
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                1
              ],
              "dx": -7,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                4,
                8
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                4,
                5
              ],
              "dx": -3,
              "dy": 0,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                4,
                8
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                4,
                5
              ],
              "dx": -3,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                4,
                8
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                4,
                5
              ],
              "dx": -3,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                4,
                8
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
                5
              ],
              "dx": -3,
              "dy": 4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                4,
                8
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
                5
              ],
              "dx": -3,
              "dy": 4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                4,
                8
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
                5
              ],
              "dx": -3,
              "dy": 4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                1
              ],
              "dx": -4,
              "dy": -4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                1
              ],
              "dx": -4,
              "dy": -4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                1
              ],
              "dx": -4,
              "dy": -4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                4,
                5
              ],
              "dx": 0,
              "dy": -4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                4,
                5
              ],
              "dx": 0,
              "dy": -4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                4,
                5
              ],
              "dx": 0,
              "dy": -4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                4,
                8
              ],
              "dx": 3,
              "dy": -4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                4,
                8
              ],
              "dx": 3,
              "dy": -4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                4,
                8
              ],
              "dx": 3,
              "dy": -4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
              2,
              3,
              4
            ],
            "2": [
              1,
              3,
              4
            ],
            "3": [
              1,
              2,
              4
            ],
            "4": [
              1,
              2,
              3
            ]
          },
          "visible_openings_candidates": {
            "1": [
              5,
              6,
              7,
              8,
              9
            ],
            "2": [
              5,
              6,
              7,
              8,
              9
            ],
            "3": [
              5,
              6,
              7,
              8,
              9
            ],
            "4": [
              5,
              6,
              7,
              8,
              9
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [],
          "diagnostics": []
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_old_house_main.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_suv_cabin": {
        "fp_id": "fp_suv_cabin",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_suv_cabin",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 0,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 1,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 2,
              "col": 3,
              "kind": "base_structural_unit"
            },
            {
              "number": 4,
              "row": 1,
              "col": 3,
              "kind": "base_structural_unit"
            },
            {
              "number": 5,
              "row": 1,
              "col": 2,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 6,
              "row": 2,
              "col": 2,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 7,
              "row": 4,
              "col": 3,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 8,
              "row": 2,
              "col": 4,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 9,
              "row": 2,
              "col": 4,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 10,
              "row": 2,
              "col": 5,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 11,
              "row": 3,
              "col": 4,
              "kind": "base_opening"
            },
            {
              "number": 12,
              "row": 4,
              "col": 4,
              "kind": "base_opening"
            },
            {
              "number": 13,
              "row": 2,
              "col": 6,
              "kind": "base_opening"
            },
            {
              "number": 14,
              "row": 2,
              "col": 7,
              "kind": "base_opening"
            },
            {
              "number": 15,
              "row": 4,
              "col": 6,
              "kind": "base_opening"
            },
            {
              "number": 17,
              "row": 4,
              "col": 2,
              "kind": "base_opening"
            },
            {
              "number": 18,
              "row": 4,
              "col": 7,
              "kind": "base_opening"
            },
            {
              "number": 19,
              "row": 6,
              "col": 3,
              "kind": "base_opening"
            },
            {
              "number": 20,
              "row": 6,
              "col": 4,
              "kind": "base_opening"
            },
            {
              "number": 21,
              "row": 6,
              "col": 6,
              "kind": "base_opening"
            },
            {
              "number": 22,
              "row": 7,
              "col": 4,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 23,
              "row": 7,
              "col": 2,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 24,
              "row": 7,
              "col": 7,
              "kind": "base_persistent_fixture"
            }
          ],
          "missing_markers": [
            16
          ],
          "extra_markers": [],
          "confidence": 0.93,
          "diagnostics": [
            "Marker 16 is not visible.",
            "Markers 19 and 20 each appear more than once; the topmost visible occurrence was recorded.",
            "observed_markers[8] cell (2,4) shares a 10x10 cell with marker #8 (W20E6-A: surfaced as diagnostic, not a hard blocker -- distinct marker numbers may genuinely occupy the same coarse cell)"
          ],
          "cell_collision_diagnostics": [
            "observed_markers[8] cell (2,4) shares a 10x10 cell with marker #8 (W20E6-A: surfaced as diagnostic, not a hard blocker -- distinct marker numbers may genuinely occupy the same coarse cell)"
          ],
          "provider_name": "litellm_gpt55_vision_v1"
        },
        "geometry": {
          "fp_id": "fp_suv_cabin",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              0,
              4
            ],
            "2": [
              1,
              5
            ],
            "3": [
              2,
              3
            ],
            "4": [
              1,
              3
            ],
            "5": [
              1,
              2
            ],
            "6": [
              2,
              2
            ],
            "7": [
              4,
              3
            ],
            "8": [
              2,
              4
            ],
            "9": [
              2,
              4
            ],
            "10": [
              2,
              5
            ],
            "11": [
              3,
              4
            ],
            "12": [
              4,
              4
            ],
            "13": [
              2,
              6
            ],
            "14": [
              2,
              7
            ],
            "15": [
              4,
              6
            ],
            "17": [
              4,
              2
            ],
            "18": [
              4,
              7
            ],
            "19": [
              6,
              3
            ],
            "20": [
              6,
              4
            ],
            "21": [
              6,
              6
            ],
            "22": [
              7,
              4
            ],
            "23": [
              7,
              2
            ],
            "24": [
              7,
              7
            ]
          },
          "unit_marker_cells": {
            "1": [
              0,
              4
            ],
            "2": [
              1,
              5
            ],
            "3": [
              2,
              3
            ],
            "4": [
              1,
              3
            ]
          },
          "opening_marker_cells": {
            "11": [
              3,
              4
            ],
            "12": [
              4,
              4
            ],
            "13": [
              2,
              6
            ],
            "14": [
              2,
              7
            ],
            "15": [
              4,
              6
            ],
            "17": [
              4,
              2
            ],
            "18": [
              4,
              7
            ],
            "19": [
              6,
              3
            ],
            "20": [
              6,
              4
            ],
            "21": [
              6,
              6
            ]
          },
          "fixture_marker_cells": {
            "5": [
              1,
              2
            ],
            "6": [
              2,
              2
            ],
            "7": [
              4,
              3
            ],
            "22": [
              7,
              4
            ],
            "23": [
              7,
              2
            ],
            "24": [
              7,
              7
            ]
          },
          "furniture_marker_cells": {
            "8": [
              2,
              4
            ],
            "9": [
              2,
              4
            ],
            "10": [
              2,
              5
            ]
          },
          "camera_cell_candidates_per_unit": {
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              [
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              ]
            ],
            "2": [
              [
                1,
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              ]
            ],
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          },
          "look_at_cell_candidates_per_unit": {
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              ],
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            ]
          },
          "direction_vector_records": [
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              ],
              "look_at_unit": 2,
              "look_at_cell": [
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              "length_l1": 2
            },
            {
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              "dx": -1,
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            },
            {
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              "camera_cell": [
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              ],
              "look_at_unit": 3,
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              ],
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            },
            {
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            },
            {
              "camera_unit": 3,
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                2,
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            {
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              "length_l1": 1
            },
            {
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              ],
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            },
            {
              "camera_unit": 4,
              "camera_cell": [
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              "look_at_unit": 2,
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            },
            {
              "camera_unit": 4,
              "camera_cell": [
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              ],
              "look_at_unit": 3,
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              ],
              "dx": 0,
              "dy": 1,
              "length_l1": 1
            }
          ],
          "view_cone_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
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              ],
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              "fov_deg": 90
            },
            {
              "camera_unit": 1,
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                0,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
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              ],
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              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 1,
              "dy": 1,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                2,
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              ],
              "dx": -1,
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              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
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                0,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                2,
                3
              ],
              "dx": -1,
              "dy": 2,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                2,
                3
              ],
              "dx": -1,
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            },
            {
              "camera_unit": 1,
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                0,
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              ],
              "look_at_unit": 4,
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            },
            {
              "camera_unit": 1,
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                0,
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            },
            {
              "camera_unit": 1,
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                0,
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              ],
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                1,
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              ],
              "dx": -1,
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              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 1,
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                0,
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              ],
              "dx": -1,
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            },
            {
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                1,
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            },
            {
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              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 1,
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              ],
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            },
            {
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              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
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                3
              ],
              "dx": -2,
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              "lens_enum": "wide",
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            },
            {
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              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 3,
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                2,
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              ],
              "dx": -2,
              "dy": 1,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
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              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 3,
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                2,
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            {
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                1,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                1,
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              ],
              "dx": -2,
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            },
            {
              "camera_unit": 2,
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              ],
              "look_at_unit": 4,
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            {
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            {
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                2,
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              ],
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                0,
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              ],
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            },
            {
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            {
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              ],
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            },
            {
              "camera_unit": 3,
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                2,
                3
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
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              ],
              "dx": 2,
              "dy": -1,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                2,
                3
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 2,
              "dy": -1,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                2,
                3
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 2,
              "dy": -1,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                2,
                3
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                1,
                3
              ],
              "dx": 0,
              "dy": -1,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                2,
                3
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                1,
                3
              ],
              "dx": 0,
              "dy": -1,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                2,
                3
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                1,
                3
              ],
              "dx": 0,
              "dy": -1,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                1,
                3
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                0,
                4
              ],
              "dx": 1,
              "dy": -1,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                1,
                3
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                0,
                4
              ],
              "dx": 1,
              "dy": -1,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                1,
                3
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                0,
                4
              ],
              "dx": 1,
              "dy": -1,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                1,
                3
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 2,
              "dy": 0,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                1,
                3
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 2,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                1,
                3
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 2,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                1,
                3
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                2,
                3
              ],
              "dx": 0,
              "dy": 1,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                1,
                3
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                2,
                3
              ],
              "dx": 0,
              "dy": 1,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                1,
                3
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                2,
                3
              ],
              "dx": 0,
              "dy": 1,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
              2,
              3,
              4
            ],
            "2": [
              1,
              3,
              4
            ],
            "3": [
              1,
              2,
              4
            ],
            "4": [
              1,
              2,
              3
            ]
          },
          "visible_openings_candidates": {
            "1": [
              11,
              12,
              13,
              14,
              15,
              17,
              18,
              19,
              20,
              21
            ],
            "2": [
              11,
              12,
              13,
              14,
              15,
              17,
              18,
              19,
              20,
              21
            ],
            "3": [
              11,
              12,
              13,
              14,
              15,
              17,
              18,
              19,
              20,
              21
            ],
            "4": [
              11,
              12,
              13,
              14,
              15,
              17,
              18,
              19,
              20,
              21
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [
            "observed_marker #9 shares 10x10 cell (2,4) with marker #8 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ],
          "diagnostics": [
            "observed_marker #9 shares 10x10 cell (2,4) with marker #8 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ]
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_suv_cabin.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l08_forecourt": {
        "fp_id": "fp_l08_forecourt",
        "error": "unexpected: VlmProviderError: validator_failed: observed_markers[12].number=13 duplicated",
        "real_vlm_call": true,
        "real_vlm_call_count": 3,
        "readback_attempts": 3
      },
      "fp_l09_corridor": {
        "fp_id": "fp_l09_corridor",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l09_corridor",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 4,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 4,
              "col": 8,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 6,
              "col": 8,
              "kind": "base_opening"
            },
            {
              "number": 4,
              "row": 6,
              "col": 2,
              "kind": "base_structural_unit"
            },
            {
              "number": 5,
              "row": 5,
              "col": 2,
              "kind": "base_opening"
            },
            {
              "number": 6,
              "row": 6,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 7,
              "row": 5,
              "col": 6,
              "kind": "base_opening"
            },
            {
              "number": 8,
              "row": 1,
              "col": 2,
              "kind": "base_structural_unit"
            },
            {
              "number": 9,
              "row": 3,
              "col": 2,
              "kind": "base_opening"
            },
            {
              "number": 10,
              "row": 6,
              "col": 9,
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            {
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            },
            {
              "camera_unit": 8,
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              ],
              "look_at_unit": 4,
              "look_at_cell": [
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                2
              ],
              "dx": 0,
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              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 8,
              "camera_cell": [
                1,
                2
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                6,
                2
              ],
              "dx": 0,
              "dy": 5,
              "lens_enum": "telephoto",
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            },
            {
              "camera_unit": 8,
              "camera_cell": [
                1,
                2
              ],
              "look_at_unit": 6,
              "look_at_cell": [
                6,
                5
              ],
              "dx": 3,
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              "lens_enum": "wide",
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            },
            {
              "camera_unit": 8,
              "camera_cell": [
                1,
                2
              ],
              "look_at_unit": 6,
              "look_at_cell": [
                6,
                5
              ],
              "dx": 3,
              "dy": 5,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 8,
              "camera_cell": [
                1,
                2
              ],
              "look_at_unit": 6,
              "look_at_cell": [
                6,
                5
              ],
              "dx": 3,
              "dy": 5,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
              2,
              4,
              6,
              8
            ],
            "2": [
              1,
              4,
              6,
              8
            ],
            "4": [
              1,
              2,
              6,
              8
            ],
            "6": [
              1,
              2,
              4,
              8
            ],
            "8": [
              1,
              2,
              4,
              6
            ]
          },
          "visible_openings_candidates": {
            "1": [
              3,
              5,
              7,
              9
            ],
            "2": [
              3,
              5,
              7,
              9
            ],
            "4": [
              3,
              5,
              7,
              9
            ],
            "6": [
              3,
              5,
              7,
              9
            ],
            "8": [
              3,
              5,
              7,
              9
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [],
          "diagnostics": []
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_l09_corridor.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l10_rest_area": {
        "fp_id": "fp_l10_rest_area",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l10_rest_area",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 0,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 4,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 7,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 4,
              "row": 2,
              "col": 4,
              "kind": "base_opening"
            },
            {
              "number": 5,
              "row": 2,
              "col": 2,
              "kind": "base_opening"
            },
            {
              "number": 6,
              "row": 2,
              "col": 7,
              "kind": "base_opening"
            },
            {
              "number": 7,
              "row": 3,
              "col": 3,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 8,
              "row": 4,
              "col": 8,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 9,
              "row": 4,
              "col": 6,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 10,
              "row": 4,
              "col": 1,
              "kind": "base_structural_unit"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [],
          "cell_collision_diagnostics": [],
          "provider_name": "litellm_gpt55_vision_v1"
        },
        "geometry": {
          "fp_id": "fp_l10_rest_area",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              0,
              4
            ],
            "2": [
              4,
              4
            ],
            "3": [
              7,
              4
            ],
            "4": [
              2,
              4
            ],
            "5": [
              2,
              2
            ],
            "6": [
              2,
              7
            ],
            "7": [
              3,
              3
            ],
            "8": [
              4,
              8
            ],
            "9": [
              4,
              6
            ],
            "10": [
              4,
              1
            ]
          },
          "unit_marker_cells": {
            "1": [
              0,
              4
            ],
            "2": [
              4,
              4
            ],
            "3": [
              7,
              4
            ],
            "10": [
              4,
              1
            ]
          },
          "opening_marker_cells": {
            "4": [
              2,
              4
            ],
            "5": [
              2,
              2
            ],
            "6": [
              2,
              7
            ]
          },
          "fixture_marker_cells": {
            "9": [
              4,
              6
            ]
          },
          "furniture_marker_cells": {
            "7": [
              3,
              3
            ],
            "8": [
              4,
              8
            ]
          },
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                0,
                4
              ]
            ],
            "2": [
              [
                4,
                4
              ]
            ],
            "3": [
              [
                7,
                4
              ]
            ],
            "10": [
              [
                4,
                1
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                2,
                2
              ],
              [
                2,
                4
              ],
              [
                2,
                7
              ],
              [
                3,
                3
              ],
              [
                4,
                6
              ],
              [
                4,
                8
              ]
            ],
            "2": [
              [
                2,
                2
              ],
              [
                2,
                4
              ],
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                2,
                7
              ],
              [
                3,
                3
              ],
              [
                4,
                6
              ],
              [
                4,
                8
              ]
            ],
            "3": [
              [
                2,
                2
              ],
              [
                2,
                4
              ],
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                2,
                7
              ],
              [
                3,
                3
              ],
              [
                4,
                6
              ],
              [
                4,
                8
              ]
            ],
            "10": [
              [
                2,
                2
              ],
              [
                2,
                4
              ],
              [
                2,
                7
              ],
              [
                3,
                3
              ],
              [
                4,
                6
              ],
              [
                4,
                8
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                4,
                4
              ],
              "dx": 0,
              "dy": 4,
              "length_l1": 4
            },
            {
              "camera_unit": 1,
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              ],
              "look_at_unit": 3,
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            },
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            },
            {
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            {
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            {
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            {
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            {
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              "dx": -3,
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              "length_l1": 6
            },
            {
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            {
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            },
            {
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              "dx": 3,
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              "length_l1": 6
            }
          ],
          "view_cone_records": [
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            {
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            {
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            },
            {
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              ],
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              "look_at_cell": [
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                4
              ],
              "dx": 3,
              "dy": 3,
              "lens_enum": "telephoto",
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            }
          ],
          "visible_units_candidates": {
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              3,
              10
            ],
            "2": [
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              3,
              10
            ],
            "3": [
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              2,
              10
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            "10": [
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          },
          "visible_openings_candidates": {
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            ],
            "2": [
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              5,
              6
            ],
            "3": [
              4,
              5,
              6
            ],
            "10": [
              4,
              5,
              6
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [],
          "diagnostics": []
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_l10_rest_area.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l11_conference_hall": {
        "fp_id": "fp_l11_conference_hall",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l11_conference_hall",
          "grid_size": [
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            10
          ],
          "observed_markers": [
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              "row": 2,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 1,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 5,
              "col": 2,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 4,
              "row": 5,
              "col": 4,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 5,
              "row": 5,
              "col": 7,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 6,
              "row": 5,
              "col": 3,
              "kind": "base_structural_unit"
            },
            {
              "number": 7,
              "row": 5,
              "col": 6,
              "kind": "base_structural_unit"
            },
            {
              "number": 8,
              "row": 8,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 9,
              "row": 9,
              "col": 4,
              "kind": "base_opening"
            },
            {
              "number": 10,
              "row": 1,
              "col": 8,
              "kind": "base_opening"
            },
            {
              "number": 11,
              "row": 2,
              "col": 8,
              "kind": "base_opening"
            },
            {
              "number": 12,
              "row": 4,
              "col": 8,
              "kind": "base_opening"
            },
            {
              "number": 13,
              "row": 6,
              "col": 8,
              "kind": "base_opening"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [],
          "cell_collision_diagnostics": [],
          "provider_name": "litellm_gpt55_vision_v1"
        },
        "geometry": {
          "fp_id": "fp_l11_conference_hall",
          "grid_size": [
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            10
          ],
          "readback_status": "ok",
          "marker_cells": {
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            ],
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            ],
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            ],
            "13": [
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            ]
          },
          "unit_marker_cells": {
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            ],
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            ],
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              3
            ],
            "7": [
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            ],
            "8": [
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            ]
          },
          "opening_marker_cells": {
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            ],
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            ],
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            ],
            "12": [
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            ],
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            ]
          },
          "fixture_marker_cells": {},
          "furniture_marker_cells": {
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            ],
            "4": [
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            ],
            "5": [
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          },
          "camera_cell_candidates_per_unit": {
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            ],
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            ]
          },
          "look_at_cell_candidates_per_unit": {
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          },
          "direction_vector_records": [
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            {
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            {
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            {
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              "look_at_unit": 6,
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                3
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              "dx": -1,
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            },
            {
              "camera_unit": 8,
              "camera_cell": [
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                4
              ],
              "look_at_unit": 7,
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                6
              ],
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            },
            {
              "camera_unit": 8,
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                4
              ],
              "look_at_unit": 7,
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            },
            {
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                4
              ],
              "look_at_unit": 7,
              "look_at_cell": [
                5,
                6
              ],
              "dx": 2,
              "dy": -3,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
              2,
              6,
              7,
              8
            ],
            "2": [
              1,
              6,
              7,
              8
            ],
            "6": [
              1,
              2,
              7,
              8
            ],
            "7": [
              1,
              2,
              6,
              8
            ],
            "8": [
              1,
              2,
              6,
              7
            ]
          },
          "visible_openings_candidates": {
            "1": [
              9,
              10,
              11,
              12,
              13
            ],
            "2": [
              9,
              10,
              11,
              12,
              13
            ],
            "6": [
              9,
              10,
              11,
              12,
              13
            ],
            "7": [
              9,
              10,
              11,
              12,
              13
            ],
            "8": [
              9,
              10,
              11,
              12,
              13
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [],
          "diagnostics": []
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_l11_conference_hall.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l12_detective_office": {
        "fp_id": "fp_l12_detective_office",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l12_detective_office",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 2,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 1,
              "col": 8,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 1,
              "col": 1,
              "kind": "base_structural_unit"
            },
            {
              "number": 4,
              "row": 0,
              "col": 5,
              "kind": "base_opening"
            },
            {
              "number": 5,
              "row": 9,
              "col": 4,
              "kind": "base_opening"
            },
            {
              "number": 6,
              "row": 5,
              "col": 4,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 7,
              "row": 6,
              "col": 3,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 8,
              "row": 6,
              "col": 5,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 9,
              "row": 6,
              "col": 4,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 10,
              "row": 4,
              "col": 4,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 11,
              "row": 4,
              "col": 6,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 12,
              "row": 3,
              "col": 8,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 13,
              "row": 5,
              "col": 0,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 14,
              "row": 0,
              "col": 2,
              "kind": "base_persistent_fixture"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [
            "Marker 14 appears in two visible locations; the top shelving-bank marker is used for its reported cell."
          ],
          "cell_collision_diagnostics": [],
          "provider_name": "litellm_gpt55_vision_v1"
        },
        "geometry": {
          "fp_id": "fp_l12_detective_office",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              2,
              5
            ],
            "2": [
              1,
              8
            ],
            "3": [
              1,
              1
            ],
            "4": [
              0,
              5
            ],
            "5": [
              9,
              4
            ],
            "6": [
              5,
              4
            ],
            "7": [
              6,
              3
            ],
            "8": [
              6,
              5
            ],
            "9": [
              6,
              4
            ],
            "10": [
              4,
              4
            ],
            "11": [
              4,
              6
            ],
            "12": [
              3,
              8
            ],
            "13": [
              5,
              0
            ],
            "14": [
              0,
              2
            ]
          },
          "unit_marker_cells": {
            "1": [
              2,
              5
            ],
            "2": [
              1,
              8
            ],
            "3": [
              1,
              1
            ]
          },
          "opening_marker_cells": {
            "4": [
              0,
              5
            ],
            "5": [
              9,
              4
            ]
          },
          "fixture_marker_cells": {
            "9": [
              6,
              4
            ],
            "10": [
              4,
              4
            ],
            "11": [
              4,
              6
            ],
            "13": [
              5,
              0
            ],
            "14": [
              0,
              2
            ]
          },
          "furniture_marker_cells": {
            "6": [
              5,
              4
            ],
            "7": [
              6,
              3
            ],
            "8": [
              6,
              5
            ],
            "12": [
              3,
              8
            ]
          },
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                2,
                5
              ]
            ],
            "2": [
              [
                1,
                8
              ]
            ],
            "3": [
              [
                1,
                1
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                0,
                2
              ],
              [
                0,
                5
              ],
              [
                3,
                8
              ],
              [
                4,
                4
              ],
              [
                4,
                6
              ],
              [
                5,
                0
              ],
              [
                5,
                4
              ],
              [
                6,
                3
              ],
              [
                6,
                4
              ],
              [
                6,
                5
              ],
              [
                9,
                4
              ]
            ],
            "2": [
              [
                0,
                2
              ],
              [
                0,
                5
              ],
              [
                3,
                8
              ],
              [
                4,
                4
              ],
              [
                4,
                6
              ],
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                5,
                0
              ],
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                5,
                4
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                6,
                3
              ],
              [
                6,
                4
              ],
              [
                6,
                5
              ],
              [
                9,
                4
              ]
            ],
            "3": [
              [
                0,
                2
              ],
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                0,
                5
              ],
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                3,
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              ],
              [
                4,
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              ],
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              ],
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                5,
                0
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                5,
                4
              ],
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                6,
                3
              ],
              [
                6,
                4
              ],
              [
                6,
                5
              ],
              [
                9,
                4
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                2,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                8
              ],
              "dx": 3,
              "dy": -1,
              "length_l1": 4
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                2,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                1,
                1
              ],
              "dx": -4,
              "dy": -1,
              "length_l1": 5
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
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          ],
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            "3": [
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          },
          "visible_openings_candidates": {
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            ],
            "2": [
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            ],
            "3": [
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              5
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [],
          "diagnostics": []
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_l12_detective_office.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
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        "fp_id": "fp_l13_investigation_chief_office",
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        "readback": {
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          ],
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            },
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              "row": 2,
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            {
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            },
            {
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              "kind": "base_structural_unit"
            },
            {
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              "kind": "base_opening"
            },
            {
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              "row": 3,
              "col": 0,
              "kind": "base_opening"
            },
            {
              "number": 8,
              "row": 6,
              "col": 1,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 9,
              "row": 8,
              "col": 1,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 10,
              "row": 4,
              "col": 8,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 11,
              "row": 6,
              "col": 8,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 12,
              "row": 8,
              "col": 8,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 13,
              "row": 8,
              "col": 4,
              "kind": "base_persistent_fixture"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [],
          "cell_collision_diagnostics": [],
          "provider_name": "litellm_gpt55_vision_v1"
        },
        "geometry": {
          "fp_id": "fp_l13_investigation_chief_office",
          "grid_size": [
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            10
          ],
          "readback_status": "ok",
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            "12": [
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          },
          "unit_marker_cells": {
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            ],
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            ],
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              7
            ],
            "4": [
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            ],
            "5": [
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            ]
          },
          "opening_marker_cells": {
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            ],
            "7": [
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          },
          "fixture_marker_cells": {
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            ]
          },
          "furniture_marker_cells": {
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          },
          "camera_cell_candidates_per_unit": {
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          },
          "look_at_cell_candidates_per_unit": {
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            {
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            {
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            {
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                4
              ],
              "look_at_unit": 4,
              "look_at_cell": [
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                4
              ],
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            {
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              "look_at_unit": 4,
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            },
            {
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                4
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                5,
                4
              ],
              "dx": 0,
              "dy": -1,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
              2,
              3,
              4,
              5
            ],
            "2": [
              1,
              3,
              4,
              5
            ],
            "3": [
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              2,
              4,
              5
            ],
            "4": [
              1,
              2,
              3,
              5
            ],
            "5": [
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              2,
              3,
              4
            ]
          },
          "visible_openings_candidates": {
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              7
            ],
            "2": [
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              7
            ],
            "3": [
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              7
            ],
            "4": [
              6,
              7
            ],
            "5": [
              6,
              7
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [],
          "diagnostics": []
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_l13_investigation_chief_office.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l14_records_room": {
        "fp_id": "fp_l14_records_room",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l14_records_room",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 7,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 4,
              "col": 4,
              "kind": "base_opening"
            },
            {
              "number": 3,
              "row": 5,
              "col": 3,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 4,
              "row": 4,
              "col": 6,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 5,
              "row": 4,
              "col": 3,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 6,
              "row": 8,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 7,
              "row": 9,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 8,
              "row": 0,
              "col": 5,
              "kind": "base_persistent_furniture"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [],
          "cell_collision_diagnostics": [],
          "provider_name": "litellm_gpt55_vision_v1"
        },
        "geometry": {
          "fp_id": "fp_l14_records_room",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              7,
              4
            ],
            "2": [
              4,
              4
            ],
            "3": [
              5,
              3
            ],
            "4": [
              4,
              6
            ],
            "5": [
              4,
              3
            ],
            "6": [
              8,
              4
            ],
            "7": [
              9,
              4
            ],
            "8": [
              0,
              5
            ]
          },
          "unit_marker_cells": {
            "1": [
              7,
              4
            ],
            "6": [
              8,
              4
            ],
            "7": [
              9,
              4
            ]
          },
          "opening_marker_cells": {
            "2": [
              4,
              4
            ]
          },
          "fixture_marker_cells": {},
          "furniture_marker_cells": {
            "3": [
              5,
              3
            ],
            "4": [
              4,
              6
            ],
            "5": [
              4,
              3
            ],
            "8": [
              0,
              5
            ]
          },
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                7,
                4
              ]
            ],
            "6": [
              [
                8,
                4
              ]
            ],
            "7": [
              [
                9,
                4
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                0,
                5
              ],
              [
                4,
                3
              ],
              [
                4,
                4
              ],
              [
                4,
                6
              ],
              [
                5,
                3
              ]
            ],
            "6": [
              [
                0,
                5
              ],
              [
                4,
                3
              ],
              [
                4,
                4
              ],
              [
                4,
                6
              ],
              [
                5,
                3
              ]
            ],
            "7": [
              [
                0,
                5
              ],
              [
                4,
                3
              ],
              [
                4,
                4
              ],
              [
                4,
                6
              ],
              [
                5,
                3
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                7,
                4
              ],
              "look_at_unit": 6,
              "look_at_cell": [
                8,
                4
              ],
              "dx": 0,
              "dy": 1,
              "length_l1": 1
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                7,
                4
              ],
              "look_at_unit": 7,
              "look_at_cell": [
                9,
                4
              ],
              "dx": 0,
              "dy": 2,
              "length_l1": 2
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                7,
                4
              ],
              "dx": 0,
              "dy": -1,
              "length_l1": 1
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                8,
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            "7": [
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          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [],
          "diagnostics": []
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_l14_records_room.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
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        "fp_id": "fp_l27_station_chief_office",
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        "readback": {
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          ],
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            },
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              "row": 3,
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            },
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            },
            {
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              "kind": "base_structural_unit"
            },
            {
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              "kind": "base_opening"
            },
            {
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            {
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            },
            {
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              "kind": "base_persistent_furniture"
            },
            {
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              "kind": "base_persistent_furniture"
            },
            {
              "number": 10,
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              "col": 6,
              "kind": "base_persistent_furniture"
            },
            {
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              "row": 1,
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            },
            {
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            },
            {
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            },
            {
              "number": 14,
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            },
            {
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              "row": 5,
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              "kind": "base_persistent_fixture"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [],
          "cell_collision_diagnostics": [],
          "provider_name": "litellm_gpt55_vision_v1"
        },
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          ],
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            ],
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          },
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            ],
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          },
          "opening_marker_cells": {
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          },
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          },
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            ],
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              ]
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          },
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            },
            {
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              ],
              "look_at_unit": 2,
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            },
            {
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              ],
              "look_at_unit": 2,
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              ],
              "dx": -5,
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            },
            {
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              "camera_cell": [
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              ],
              "look_at_unit": 3,
              "look_at_cell": [
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              ],
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              "lens_enum": "wide",
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            },
            {
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              "camera_cell": [
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              ],
              "look_at_unit": 3,
              "look_at_cell": [
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              ],
              "dx": -2,
              "dy": 3,
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            },
            {
              "camera_unit": 4,
              "camera_cell": [
                3,
                8
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                6,
                6
              ],
              "dx": -2,
              "dy": 3,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
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              3,
              4
            ],
            "2": [
              1,
              3,
              4
            ],
            "3": [
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              2,
              4
            ],
            "4": [
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              2,
              3
            ]
          },
          "visible_openings_candidates": {
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              7
            ],
            "2": [
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              6,
              7
            ],
            "3": [
              5,
              6,
              7
            ],
            "4": [
              5,
              6,
              7
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [],
          "diagnostics": []
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_l27_station_chief_office.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 2,
        "readback_attempts": 2
      },
      "fp_l44_rooftop": {
        "fp_id": "fp_l44_rooftop",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l44_rooftop",
          "grid_size": [
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            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 3,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 1,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 1,
              "col": 5,
              "kind": "base_opening"
            },
            {
              "number": 4,
              "row": 6,
              "col": 4,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 5,
              "row": 7,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 6,
              "row": 2,
              "col": 4,
              "kind": "base_structural_unit"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [],
          "cell_collision_diagnostics": [],
          "provider_name": "litellm_gpt55_vision_v1"
        },
        "geometry": {
          "fp_id": "fp_l44_rooftop",
          "grid_size": [
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            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              3,
              4
            ],
            "2": [
              1,
              4
            ],
            "3": [
              1,
              5
            ],
            "4": [
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              4
            ],
            "5": [
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              4
            ],
            "6": [
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            ]
          },
          "unit_marker_cells": {
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              4
            ],
            "2": [
              1,
              4
            ],
            "5": [
              7,
              4
            ],
            "6": [
              2,
              4
            ]
          },
          "opening_marker_cells": {
            "3": [
              1,
              5
            ]
          },
          "fixture_marker_cells": {
            "4": [
              6,
              4
            ]
          },
          "furniture_marker_cells": {},
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                3,
                4
              ]
            ],
            "2": [
              [
                1,
                4
              ]
            ],
            "5": [
              [
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                4
              ]
            ],
            "6": [
              [
                2,
                4
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
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              [
                1,
                5
              ],
              [
                6,
                4
              ]
            ],
            "2": [
              [
                1,
                5
              ],
              [
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              ]
            ],
            "5": [
              [
                1,
                5
              ],
              [
                6,
                4
              ]
            ],
            "6": [
              [
                1,
                5
              ],
              [
                6,
                4
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                3,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
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                4
              ],
              "dx": 0,
              "dy": -2,
              "length_l1": 2
            },
            {
              "camera_unit": 1,
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              ],
              "look_at_unit": 5,
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              "length_l1": 4
            },
            {
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              "length_l1": 6
            },
            {
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          ],
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            {
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                4
              ],
              "look_at_unit": 6,
              "look_at_cell": [
                2,
                4
              ],
              "dx": 0,
              "dy": -5,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                7,
                4
              ],
              "look_at_unit": 6,
              "look_at_cell": [
                2,
                4
              ],
              "dx": 0,
              "dy": -5,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                2,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                3,
                4
              ],
              "dx": 0,
              "dy": 1,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                2,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                3,
                4
              ],
              "dx": 0,
              "dy": 1,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                2,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                3,
                4
              ],
              "dx": 0,
              "dy": 1,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                2,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                4
              ],
              "dx": 0,
              "dy": -1,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                2,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                4
              ],
              "dx": 0,
              "dy": -1,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                2,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                4
              ],
              "dx": 0,
              "dy": -1,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                2,
                4
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                7,
                4
              ],
              "dx": 0,
              "dy": 5,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                2,
                4
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                7,
                4
              ],
              "dx": 0,
              "dy": 5,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                2,
                4
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                7,
                4
              ],
              "dx": 0,
              "dy": 5,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
              2,
              5,
              6
            ],
            "2": [
              1,
              5,
              6
            ],
            "5": [
              1,
              2,
              6
            ],
            "6": [
              1,
              2,
              5
            ]
          },
          "visible_openings_candidates": {
            "1": [
              3
            ],
            "2": [
              3
            ],
            "5": [
              3
            ],
            "6": [
              3
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [],
          "diagnostics": []
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_l44_rooftop.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l23_research_lab": {
        "fp_id": "fp_l23_research_lab",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l23_research_lab",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 4,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 1,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 5,
              "col": 8,
              "kind": "base_structural_unit"
            },
            {
              "number": 4,
              "row": 8,
              "col": 2,
              "kind": "base_structural_unit"
            },
            {
              "number": 5,
              "row": 8,
              "col": 2,
              "kind": "base_opening"
            },
            {
              "number": 6,
              "row": 4,
              "col": 9,
              "kind": "base_opening"
            },
            {
              "number": 7,
              "row": 0,
              "col": 5,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 8,
              "row": 4,
              "col": 2,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 9,
              "row": 4,
              "col": 6,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 10,
              "row": 5,
              "col": 4,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 11,
              "row": 6,
              "col": 9,
              "kind": "base_persistent_fixture"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [
            "observed_markers[4] cell (8,2) shares a 10x10 cell with marker #4 (W20E6-A: surfaced as diagnostic, not a hard blocker -- distinct marker numbers may genuinely occupy the same coarse cell)"
          ],
          "cell_collision_diagnostics": [
            "observed_markers[4] cell (8,2) shares a 10x10 cell with marker #4 (W20E6-A: surfaced as diagnostic, not a hard blocker -- distinct marker numbers may genuinely occupy the same coarse cell)"
          ],
          "provider_name": "litellm_gpt55_vision_v1"
        },
        "geometry": {
          "fp_id": "fp_l23_research_lab",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              4,
              4
            ],
            "2": [
              1,
              5
            ],
            "3": [
              5,
              8
            ],
            "4": [
              8,
              2
            ],
            "5": [
              8,
              2
            ],
            "6": [
              4,
              9
            ],
            "7": [
              0,
              5
            ],
            "8": [
              4,
              2
            ],
            "9": [
              4,
              6
            ],
            "10": [
              5,
              4
            ],
            "11": [
              6,
              9
            ]
          },
          "unit_marker_cells": {
            "1": [
              4,
              4
            ],
            "2": [
              1,
              5
            ],
            "3": [
              5,
              8
            ],
            "4": [
              8,
              2
            ]
          },
          "opening_marker_cells": {
            "5": [
              8,
              2
            ],
            "6": [
              4,
              9
            ]
          },
          "fixture_marker_cells": {
            "7": [
              0,
              5
            ],
            "11": [
              6,
              9
            ]
          },
          "furniture_marker_cells": {
            "8": [
              4,
              2
            ],
            "9": [
              4,
              6
            ],
            "10": [
              5,
              4
            ]
          },
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                4,
                4
              ]
            ],
            "2": [
              [
                1,
                5
              ]
            ],
            "3": [
              [
                5,
                8
              ]
            ],
            "4": [
              [
                8,
                2
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                0,
                5
              ],
              [
                4,
                2
              ],
              [
                4,
                6
              ],
              [
                4,
                9
              ],
              [
                5,
                4
              ],
              [
                6,
                9
              ],
              [
                8,
                2
              ]
            ],
            "2": [
              [
                0,
                5
              ],
              [
                4,
                2
              ],
              [
                4,
                6
              ],
              [
                4,
                9
              ],
              [
                5,
                4
              ],
              [
                6,
                9
              ],
              [
                8,
                2
              ]
            ],
            "3": [
              [
                0,
                5
              ],
              [
                4,
                2
              ],
              [
                4,
                6
              ],
              [
                4,
                9
              ],
              [
                5,
                4
              ],
              [
                6,
                9
              ],
              [
                8,
                2
              ]
            ],
            "4": [
              [
                0,
                5
              ],
              [
                4,
                2
              ],
              [
                4,
                6
              ],
              [
                4,
                9
              ],
              [
                5,
                4
              ],
              [
                6,
                9
              ],
              [
                8,
                2
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 1,
              "dy": -3,
              "length_l1": 4
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                5,
                8
              ],
              "dx": 4,
              "dy": 1,
              "length_l1": 5
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                4
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
                2
              ],
              "dx": -2,
              "dy": 4,
              "length_l1": 6
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                4
              ],
              "dx": -1,
              "dy": 3,
              "length_l1": 4
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                5,
                8
              ],
              "dx": 3,
              "dy": 4,
              "length_l1": 7
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
                2
              ],
              "dx": -3,
              "dy": 7,
              "length_l1": 10
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                5,
                8
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                4
              ],
              "dx": -4,
              "dy": -1,
              "length_l1": 5
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                5,
                8
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": -3,
              "dy": -4,
              "length_l1": 7
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                5,
                8
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
                2
              ],
              "dx": -6,
              "dy": 3,
              "length_l1": 9
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
                2
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                4
              ],
              "dx": 2,
              "dy": -4,
              "length_l1": 6
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
                2
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 3,
              "dy": -7,
              "length_l1": 10
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
                2
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                5,
                8
              ],
              "dx": 6,
              "dy": -3,
              "length_l1": 9
            }
          ],
          "view_cone_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 1,
              "dy": -3,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 1,
              "dy": -3,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 1,
              "dy": -3,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                5,
                8
              ],
              "dx": 4,
              "dy": 1,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                5,
                8
              ],
              "dx": 4,
              "dy": 1,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                5,
                8
              ],
              "dx": 4,
              "dy": 1,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                4
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
                2
              ],
              "dx": -2,
              "dy": 4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                4
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
                2
              ],
              "dx": -2,
              "dy": 4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                4
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
                2
              ],
              "dx": -2,
              "dy": 4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                4
              ],
              "dx": -1,
              "dy": 3,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                4
              ],
              "dx": -1,
              "dy": 3,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                4
              ],
              "dx": -1,
              "dy": 3,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                5,
                8
              ],
              "dx": 3,
              "dy": 4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                5,
                8
              ],
              "dx": 3,
              "dy": 4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                5,
                8
              ],
              "dx": 3,
              "dy": 4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
                2
              ],
              "dx": -3,
              "dy": 7,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
                2
              ],
              "dx": -3,
              "dy": 7,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
                2
              ],
              "dx": -3,
              "dy": 7,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                5,
                8
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                4
              ],
              "dx": -4,
              "dy": -1,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                5,
                8
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                4
              ],
              "dx": -4,
              "dy": -1,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                5,
                8
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                4
              ],
              "dx": -4,
              "dy": -1,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                5,
                8
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": -3,
              "dy": -4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                5,
                8
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": -3,
              "dy": -4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                5,
                8
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": -3,
              "dy": -4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                5,
                8
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
                2
              ],
              "dx": -6,
              "dy": 3,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                5,
                8
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
                2
              ],
              "dx": -6,
              "dy": 3,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                5,
                8
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
                2
              ],
              "dx": -6,
              "dy": 3,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
                2
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                4
              ],
              "dx": 2,
              "dy": -4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
                2
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                4
              ],
              "dx": 2,
              "dy": -4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
                2
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                4
              ],
              "dx": 2,
              "dy": -4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
                2
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 3,
              "dy": -7,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
                2
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 3,
              "dy": -7,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
                2
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 3,
              "dy": -7,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
                2
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                5,
                8
              ],
              "dx": 6,
              "dy": -3,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
                2
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                5,
                8
              ],
              "dx": 6,
              "dy": -3,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
                2
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                5,
                8
              ],
              "dx": 6,
              "dy": -3,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
              2,
              3,
              4
            ],
            "2": [
              1,
              3,
              4
            ],
            "3": [
              1,
              2,
              4
            ],
            "4": [
              1,
              2,
              3
            ]
          },
          "visible_openings_candidates": {
            "1": [
              5,
              6
            ],
            "2": [
              5,
              6
            ],
            "3": [
              5,
              6
            ],
            "4": [
              5,
              6
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [
            "observed_marker #5 shares 10x10 cell (8,2) with marker #4 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ],
          "diagnostics": [
            "observed_marker #5 shares 10x10 cell (8,2) with marker #4 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ]
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_l23_research_lab.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_studio_apartment": {
        "fp_id": "fp_studio_apartment",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_studio_apartment",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 3,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 6,
              "col": 7,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 7,
              "col": 2,
              "kind": "base_structural_unit"
            },
            {
              "number": 4,
              "row": 8,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 5,
              "row": 0,
              "col": 5,
              "kind": "base_opening"
            },
            {
              "number": 6,
              "row": 8,
              "col": 6,
              "kind": "base_opening"
            },
            {
              "number": 7,
              "row": 6,
              "col": 3,
              "kind": "base_opening"
            },
            {
              "number": 8,
              "row": 4,
              "col": 8,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 9,
              "row": 6,
              "col": 8,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 10,
              "row": 7,
              "col": 8,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 11,
              "row": 6,
              "col": 2,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 12,
              "row": 8,
              "col": 1,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 13,
              "row": 1,
              "col": 2,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 14,
              "row": 3,
              "col": 1,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 15,
              "row": 3,
              "col": 8,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 16,
              "row": 1,
              "col": 6,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 17,
              "row": 5,
              "col": 2,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 18,
              "row": 8,
              "col": 7,
              "kind": "base_persistent_fixture"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [],
          "cell_collision_diagnostics": [],
          "provider_name": "litellm_gpt55_vision_v1"
        },
        "geometry": {
          "fp_id": "fp_studio_apartment",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              3,
              5
            ],
            "2": [
              6,
              7
            ],
            "3": [
              7,
              2
            ],
            "4": [
              8,
              5
            ],
            "5": [
              0,
              5
            ],
            "6": [
              8,
              6
            ],
            "7": [
              6,
              3
            ],
            "8": [
              4,
              8
            ],
            "9": [
              6,
              8
            ],
            "10": [
              7,
              8
            ],
            "11": [
              6,
              2
            ],
            "12": [
              8,
              1
            ],
            "13": [
              1,
              2
            ],
            "14": [
              3,
              1
            ],
            "15": [
              3,
              8
            ],
            "16": [
              1,
              6
            ],
            "17": [
              5,
              2
            ],
            "18": [
              8,
              7
            ]
          },
          "unit_marker_cells": {
            "1": [
              3,
              5
            ],
            "2": [
              6,
              7
            ],
            "3": [
              7,
              2
            ],
            "4": [
              8,
              5
            ]
          },
          "opening_marker_cells": {
            "5": [
              0,
              5
            ],
            "6": [
              8,
              6
            ],
            "7": [
              6,
              3
            ]
          },
          "fixture_marker_cells": {
            "8": [
              4,
              8
            ],
            "9": [
              6,
              8
            ],
            "10": [
              7,
              8
            ],
            "11": [
              6,
              2
            ],
            "12": [
              8,
              1
            ],
            "18": [
              8,
              7
            ]
          },
          "furniture_marker_cells": {
            "13": [
              1,
              2
            ],
            "14": [
              3,
              1
            ],
            "15": [
              3,
              8
            ],
            "16": [
              1,
              6
            ],
            "17": [
              5,
              2
            ]
          },
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                3,
                5
              ]
            ],
            "2": [
              [
                6,
                7
              ]
            ],
            "3": [
              [
                7,
                2
              ]
            ],
            "4": [
              [
                8,
                5
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                0,
                5
              ],
              [
                1,
                2
              ],
              [
                1,
                6
              ],
              [
                3,
                1
              ],
              [
                3,
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              ],
              [
                4,
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              ],
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                5,
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              ],
              [
                6,
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              ],
              [
                6,
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              ],
              [
                6,
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              ],
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                7,
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              ],
              [
                8,
                1
              ],
              [
                8,
                6
              ],
              [
                8,
                7
              ]
            ],
            "2": [
              [
                0,
                5
              ],
              [
                1,
                2
              ],
              [
                1,
                6
              ],
              [
                3,
                1
              ],
              [
                3,
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              ],
              [
                4,
                8
              ],
              [
                5,
                2
              ],
              [
                6,
                2
              ],
              [
                6,
                3
              ],
              [
                6,
                8
              ],
              [
                7,
                8
              ],
              [
                8,
                1
              ],
              [
                8,
                6
              ],
              [
                8,
                7
              ]
            ],
            "3": [
              [
                0,
                5
              ],
              [
                1,
                2
              ],
              [
                1,
                6
              ],
              [
                3,
                1
              ],
              [
                3,
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              ],
              [
                4,
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              ],
              [
                5,
                2
              ],
              [
                6,
                2
              ],
              [
                6,
                3
              ],
              [
                6,
                8
              ],
              [
                7,
                8
              ],
              [
                8,
                1
              ],
              [
                8,
                6
              ],
              [
                8,
                7
              ]
            ],
            "4": [
              [
                0,
                5
              ],
              [
                1,
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              ],
              [
                1,
                6
              ],
              [
                3,
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              ],
              [
                3,
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              ],
              [
                4,
                8
              ],
              [
                5,
                2
              ],
              [
                6,
                2
              ],
              [
                6,
                3
              ],
              [
                6,
                8
              ],
              [
                7,
                8
              ],
              [
                8,
                1
              ],
              [
                8,
                6
              ],
              [
                8,
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              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                3,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                6,
                7
              ],
              "dx": 2,
              "dy": 3,
              "length_l1": 5
            },
            {
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                3,
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              ],
              "look_at_unit": 3,
              "look_at_cell": [
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              ],
              "dx": -3,
              "dy": 4,
              "length_l1": 7
            },
            {
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                3,
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              ],
              "look_at_unit": 4,
              "look_at_cell": [
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              ],
              "dx": 0,
              "dy": 5,
              "length_l1": 5
            },
            {
              "camera_unit": 2,
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              ],
              "look_at_unit": 1,
              "look_at_cell": [
                3,
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              ],
              "dx": -2,
              "dy": -3,
              "length_l1": 5
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                6,
                7
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                2
              ],
              "dx": -5,
              "dy": 1,
              "length_l1": 6
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                6,
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              ],
              "look_at_unit": 4,
              "look_at_cell": [
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              ],
              "dx": -2,
              "dy": 2,
              "length_l1": 4
            },
            {
              "camera_unit": 3,
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                7,
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              ],
              "look_at_unit": 1,
              "look_at_cell": [
                3,
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              ],
              "dx": 3,
              "dy": -4,
              "length_l1": 7
            },
            {
              "camera_unit": 3,
              "camera_cell": [
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              ],
              "look_at_unit": 2,
              "look_at_cell": [
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              ],
              "dx": 5,
              "dy": -1,
              "length_l1": 6
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
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              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
                5
              ],
              "dx": 3,
              "dy": 1,
              "length_l1": 4
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                3,
                5
              ],
              "dx": 0,
              "dy": -5,
              "length_l1": 5
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
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              "look_at_unit": 2,
              "look_at_cell": [
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              "dx": 2,
              "dy": -2,
              "length_l1": 4
            },
            {
              "camera_unit": 4,
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              "look_at_unit": 3,
              "look_at_cell": [
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              ],
              "dx": -3,
              "dy": -1,
              "length_l1": 4
            }
          ],
          "view_cone_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                3,
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              ],
              "look_at_unit": 2,
              "look_at_cell": [
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              ],
              "dx": 2,
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            },
            {
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              ],
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              "look_at_cell": [
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              ],
              "dx": 2,
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              "lens_enum": "normal",
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            },
            {
              "camera_unit": 1,
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                3,
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              ],
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              "look_at_cell": [
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              ],
              "dx": 2,
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            },
            {
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              ],
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              ],
              "dx": -3,
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            },
            {
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              ],
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            },
            {
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              ],
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            },
            {
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              "camera_cell": [
                3,
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              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
                5
              ],
              "dx": 0,
              "dy": 5,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                3,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
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              ],
              "dx": 0,
              "dy": 5,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                3,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
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              ],
              "dx": 0,
              "dy": 5,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                6,
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              ],
              "look_at_unit": 1,
              "look_at_cell": [
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              ],
              "dx": -2,
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              "lens_enum": "wide",
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            },
            {
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              "camera_cell": [
                6,
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              ],
              "look_at_unit": 1,
              "look_at_cell": [
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              ],
              "dx": -2,
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              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                6,
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              ],
              "look_at_unit": 1,
              "look_at_cell": [
                3,
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              ],
              "dx": -2,
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              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                6,
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              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
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              ],
              "dx": -5,
              "dy": 1,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                6,
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              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                2
              ],
              "dx": -5,
              "dy": 1,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                6,
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              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
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              ],
              "dx": -5,
              "dy": 1,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                6,
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              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
                5
              ],
              "dx": -2,
              "dy": 2,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                6,
                7
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
                5
              ],
              "dx": -2,
              "dy": 2,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                6,
                7
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
                5
              ],
              "dx": -2,
              "dy": 2,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                2
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                3,
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              ],
              "dx": 3,
              "dy": -4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
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              "look_at_unit": 1,
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              ],
              "dx": 3,
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              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
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              "camera_cell": [
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              "look_at_unit": 1,
              "look_at_cell": [
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              "dx": 3,
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              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
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              ],
              "look_at_unit": 2,
              "look_at_cell": [
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              "dx": 5,
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              "lens_enum": "wide",
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            },
            {
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            {
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              ],
              "dx": -3,
              "dy": -1,
              "lens_enum": "telephoto",
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            }
          ],
          "visible_units_candidates": {
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              3,
              4
            ],
            "2": [
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              3,
              4
            ],
            "3": [
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              2,
              4
            ],
            "4": [
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              2,
              3
            ]
          },
          "visible_openings_candidates": {
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            ],
            "2": [
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              6,
              7
            ],
            "3": [
              5,
              6,
              7
            ],
            "4": [
              5,
              6,
              7
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [],
          "diagnostics": []
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_studio_apartment.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l26_deputy_chief_office": {
        "fp_id": "fp_l26_deputy_chief_office",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l26_deputy_chief_office",
          "grid_size": [
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            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 3,
              "col": 1,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 5,
              "col": 6,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 6,
              "col": 6,
              "kind": "base_structural_unit"
            },
            {
              "number": 4,
              "row": 8,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 5,
              "row": 7,
              "col": 4,
              "kind": "base_opening"
            },
            {
              "number": 6,
              "row": 0,
              "col": 2,
              "kind": "base_opening"
            },
            {
              "number": 7,
              "row": 0,
              "col": 6,
              "kind": "base_opening"
            },
            {
              "number": 8,
              "row": 3,
              "col": 3,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 9,
              "row": 1,
              "col": 3,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 10,
              "row": 4,
              "col": 3,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 11,
              "row": 5,
              "col": 8,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 12,
              "row": 2,
              "col": 7,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 13,
              "row": 2,
              "col": 6,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 14,
              "row": 2,
              "col": 8,
              "kind": "base_persistent_fixture"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [],
          "cell_collision_diagnostics": [],
          "provider_name": "litellm_gpt55_vision_v1"
        },
        "geometry": {
          "fp_id": "fp_l26_deputy_chief_office",
          "grid_size": [
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            10
          ],
          "readback_status": "ok",
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            ],
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            ],
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            ],
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              8
            ],
            "12": [
              2,
              7
            ],
            "13": [
              2,
              6
            ],
            "14": [
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              8
            ]
          },
          "unit_marker_cells": {
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              3,
              1
            ],
            "2": [
              5,
              6
            ],
            "3": [
              6,
              6
            ],
            "4": [
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              5
            ]
          },
          "opening_marker_cells": {
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              4
            ],
            "6": [
              0,
              2
            ],
            "7": [
              0,
              6
            ]
          },
          "fixture_marker_cells": {
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              8
            ]
          },
          "furniture_marker_cells": {
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              3
            ],
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              3
            ],
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            ],
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            ],
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            ],
            "13": [
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            ]
          },
          "camera_cell_candidates_per_unit": {
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              [
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                1
              ]
            ],
            "2": [
              [
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              ]
            ],
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            ],
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              [
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            ]
          },
          "look_at_cell_candidates_per_unit": {
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              ],
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              ],
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          },
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              "dy": -1,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                6,
                6
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
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              ],
              "dx": 0,
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            },
            {
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              ],
              "look_at_unit": 2,
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              "dx": 0,
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            },
            {
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              "camera_cell": [
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                6
              ],
              "look_at_unit": 4,
              "look_at_cell": [
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            },
            {
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              ],
              "look_at_unit": 4,
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            },
            {
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              "camera_cell": [
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              ],
              "look_at_unit": 1,
              "look_at_cell": [
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              ],
              "dx": -4,
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            },
            {
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              "look_at_unit": 1,
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            },
            {
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              "look_at_unit": 1,
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              ],
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            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                6
              ],
              "dx": 1,
              "dy": -3,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                6
              ],
              "dx": 1,
              "dy": -3,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                6
              ],
              "dx": 1,
              "dy": -3,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                6,
                6
              ],
              "dx": 1,
              "dy": -2,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                6,
                6
              ],
              "dx": 1,
              "dy": -2,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                6,
                6
              ],
              "dx": 1,
              "dy": -2,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
              2,
              3,
              4
            ],
            "2": [
              1,
              3,
              4
            ],
            "3": [
              1,
              2,
              4
            ],
            "4": [
              1,
              2,
              3
            ]
          },
          "visible_openings_candidates": {
            "1": [
              5,
              6,
              7
            ],
            "2": [
              5,
              6,
              7
            ],
            "3": [
              5,
              6,
              7
            ],
            "4": [
              5,
              6,
              7
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [],
          "diagnostics": []
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_l26_deputy_chief_office.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l28_prosecution_front": {
        "fp_id": "fp_l28_prosecution_front",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l28_prosecution_front",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 0,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 3,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 3,
              "col": 7,
              "kind": "base_structural_unit"
            },
            {
              "number": 4,
              "row": 8,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 5,
              "row": 6,
              "col": 2,
              "kind": "base_structural_unit"
            },
            {
              "number": 6,
              "row": 6,
              "col": 4,
              "kind": "base_opening"
            },
            {
              "number": 7,
              "row": 6,
              "col": 7,
              "kind": "base_opening"
            },
            {
              "number": 8,
              "row": 1,
              "col": 4,
              "kind": "base_opening"
            },
            {
              "number": 9,
              "row": 1,
              "col": 7,
              "kind": "base_opening"
            },
            {
              "number": 10,
              "row": 5,
              "col": 6,
              "kind": "base_persistent_fixture"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [
            "Marker 3 appears twice; its upper visible instance is reported."
          ],
          "cell_collision_diagnostics": [],
          "provider_name": "litellm_gpt55_vision_v1"
        },
        "geometry": {
          "fp_id": "fp_l28_prosecution_front",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              0,
              5
            ],
            "2": [
              3,
              4
            ],
            "3": [
              3,
              7
            ],
            "4": [
              8,
              4
            ],
            "5": [
              6,
              2
            ],
            "6": [
              6,
              4
            ],
            "7": [
              6,
              7
            ],
            "8": [
              1,
              4
            ],
            "9": [
              1,
              7
            ],
            "10": [
              5,
              6
            ]
          },
          "unit_marker_cells": {
            "1": [
              0,
              5
            ],
            "2": [
              3,
              4
            ],
            "3": [
              3,
              7
            ],
            "4": [
              8,
              4
            ],
            "5": [
              6,
              2
            ]
          },
          "opening_marker_cells": {
            "6": [
              6,
              4
            ],
            "7": [
              6,
              7
            ],
            "8": [
              1,
              4
            ],
            "9": [
              1,
              7
            ]
          },
          "fixture_marker_cells": {
            "10": [
              5,
              6
            ]
          },
          "furniture_marker_cells": {},
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                0,
                5
              ]
            ],
            "2": [
              [
                3,
                4
              ]
            ],
            "3": [
              [
                3,
                7
              ]
            ],
            "4": [
              [
                8,
                4
              ]
            ],
            "5": [
              [
                6,
                2
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
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              [
                1,
                4
              ],
              [
                1,
                7
              ],
              [
                5,
                6
              ],
              [
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                4
              ],
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              ]
            ],
            "2": [
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                4
              ],
              [
                1,
                7
              ],
              [
                5,
                6
              ],
              [
                6,
                4
              ],
              [
                6,
                7
              ]
            ],
            "3": [
              [
                1,
                4
              ],
              [
                1,
                7
              ],
              [
                5,
                6
              ],
              [
                6,
                4
              ],
              [
                6,
                7
              ]
            ],
            "4": [
              [
                1,
                4
              ],
              [
                1,
                7
              ],
              [
                5,
                6
              ],
              [
                6,
                4
              ],
              [
                6,
                7
              ]
            ],
            "5": [
              [
                1,
                4
              ],
              [
                1,
                7
              ],
              [
                5,
                6
              ],
              [
                6,
                4
              ],
              [
                6,
                7
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
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              ],
              "dx": -1,
              "dy": 3,
              "length_l1": 4
            },
            {
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              ],
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            {
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            },
            {
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              "dx": -3,
              "dy": 6,
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            },
            {
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            },
            {
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              "dx": 3,
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            },
            {
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            },
            {
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            },
            {
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            {
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            {
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            {
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          ],
          "view_cone_records": [
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              ],
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            {
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            {
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            },
            {
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            },
            {
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            },
            {
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            },
            {
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              ],
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            {
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            {
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            {
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            {
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                2
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              "look_at_unit": 3,
              "look_at_cell": [
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              ],
              "dx": 5,
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              "lens_enum": "normal",
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            },
            {
              "camera_unit": 5,
              "camera_cell": [
                6,
                2
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                7
              ],
              "dx": 5,
              "dy": -3,
              "lens_enum": "telephoto",
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            },
            {
              "camera_unit": 5,
              "camera_cell": [
                6,
                2
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
                4
              ],
              "dx": 2,
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              "lens_enum": "wide",
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            },
            {
              "camera_unit": 5,
              "camera_cell": [
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                2
              ],
              "look_at_unit": 4,
              "look_at_cell": [
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                4
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              "lens_enum": "normal",
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            },
            {
              "camera_unit": 5,
              "camera_cell": [
                6,
                2
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                8,
                4
              ],
              "dx": 2,
              "dy": 2,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
              2,
              3,
              4,
              5
            ],
            "2": [
              1,
              3,
              4,
              5
            ],
            "3": [
              1,
              2,
              4,
              5
            ],
            "4": [
              1,
              2,
              3,
              5
            ],
            "5": [
              1,
              2,
              3,
              4
            ]
          },
          "visible_openings_candidates": {
            "1": [
              6,
              7,
              8,
              9
            ],
            "2": [
              6,
              7,
              8,
              9
            ],
            "3": [
              6,
              7,
              8,
              9
            ],
            "4": [
              6,
              7,
              8,
              9
            ],
            "5": [
              6,
              7,
              8,
              9
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [],
          "diagnostics": []
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_l28_prosecution_front.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 2,
        "readback_attempts": 2
      },
      "fp_l29_wonseop_office": {
        "fp_id": "fp_l29_wonseop_office",
        "error": "unexpected: VlmProviderError: validator_failed: observed_markers[13].number=13 duplicated",
        "real_vlm_call": true,
        "real_vlm_call_count": 3,
        "readback_attempts": 3
      },
      "fp_l47_interview_room": {
        "fp_id": "fp_l47_interview_room",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l47_interview_room",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 0,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 2,
              "col": 3,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 2,
              "col": 6,
              "kind": "base_structural_unit"
            },
            {
              "number": 4,
              "row": 4,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 5,
              "row": 6,
              "col": 3,
              "kind": "base_structural_unit"
            },
            {
              "number": 6,
              "row": 6,
              "col": 7,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 7,
              "row": 8,
              "col": 6,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 8,
              "row": 9,
              "col": 3,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 9,
              "row": 9,
              "col": 6,
              "kind": "base_opening"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [],
          "cell_collision_diagnostics": [],
          "provider_name": "litellm_gpt55_vision_v1"
        },
        "geometry": {
          "fp_id": "fp_l47_interview_room",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              0,
              5
            ],
            "2": [
              2,
              3
            ],
            "3": [
              2,
              6
            ],
            "4": [
              4,
              5
            ],
            "5": [
              6,
              3
            ],
            "6": [
              6,
              7
            ],
            "7": [
              8,
              6
            ],
            "8": [
              9,
              3
            ],
            "9": [
              9,
              6
            ]
          },
          "unit_marker_cells": {
            "1": [
              0,
              5
            ],
            "2": [
              2,
              3
            ],
            "3": [
              2,
              6
            ],
            "4": [
              4,
              5
            ],
            "5": [
              6,
              3
            ]
          },
          "opening_marker_cells": {
            "9": [
              9,
              6
            ]
          },
          "fixture_marker_cells": {},
          "furniture_marker_cells": {
            "6": [
              6,
              7
            ],
            "7": [
              8,
              6
            ],
            "8": [
              9,
              3
            ]
          },
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                0,
                5
              ]
            ],
            "2": [
              [
                2,
                3
              ]
            ],
            "3": [
              [
                2,
                6
              ]
            ],
            "4": [
              [
                4,
                5
              ]
            ],
            "5": [
              [
                6,
                3
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                6,
                7
              ],
              [
                8,
                6
              ],
              [
                9,
                3
              ],
              [
                9,
                6
              ]
            ],
            "2": [
              [
                6,
                7
              ],
              [
                8,
                6
              ],
              [
                9,
                3
              ],
              [
                9,
                6
              ]
            ],
            "3": [
              [
                6,
                7
              ],
              [
                8,
                6
              ],
              [
                9,
                3
              ],
              [
                9,
                6
              ]
            ],
            "4": [
              [
                6,
                7
              ],
              [
                8,
                6
              ],
              [
                9,
                3
              ],
              [
                9,
                6
              ]
            ],
            "5": [
              [
                6,
                7
              ],
              [
                8,
                6
              ],
              [
                9,
                3
              ],
              [
                9,
                6
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                2,
                3
              ],
              "dx": -2,
              "dy": 2,
              "length_l1": 4
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                2,
                6
              ],
              "dx": 1,
              "dy": 2,
              "length_l1": 3
            },
            {
              "camera_unit": 1,
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                0,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                4,
                5
              ],
              "dx": 0,
              "dy": 4,
              "length_l1": 4
            },
            {
              "camera_unit": 1,
              "camera_cell": [
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              ],
              "look_at_unit": 5,
              "look_at_cell": [
                6,
                3
              ],
              "dx": -2,
              "dy": 6,
              "length_l1": 8
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                2,
                3
              ],
              "look_at_unit": 1,
              "look_at_cell": [
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                5
              ],
              "dx": 2,
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              "length_l1": 4
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                2,
                3
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                2,
                6
              ],
              "dx": 3,
              "dy": 0,
              "length_l1": 3
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                2,
                3
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                4,
                5
              ],
              "dx": 2,
              "dy": 2,
              "length_l1": 4
            },
            {
              "camera_unit": 2,
              "camera_cell": [
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              ],
              "look_at_unit": 5,
              "look_at_cell": [
                6,
                3
              ],
              "dx": 0,
              "dy": 4,
              "length_l1": 4
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                2,
                6
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                0,
                5
              ],
              "dx": -1,
              "dy": -2,
              "length_l1": 3
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                2,
                6
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                2,
                3
              ],
              "dx": -3,
              "dy": 0,
              "length_l1": 3
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                2,
                6
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                4,
                5
              ],
              "dx": -1,
              "dy": 2,
              "length_l1": 3
            },
            {
              "camera_unit": 3,
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            {
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            {
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            {
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            {
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            {
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            {
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            {
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            {
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            {
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            {
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            {
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            {
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            {
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            },
            {
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              "look_at_unit": 2,
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            },
            {
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              "look_at_unit": 2,
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                3
              ],
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            },
            {
              "camera_unit": 5,
              "camera_cell": [
                6,
                3
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                2,
                6
              ],
              "dx": 3,
              "dy": -4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                6,
                3
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                2,
                6
              ],
              "dx": 3,
              "dy": -4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                6,
                3
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                2,
                6
              ],
              "dx": 3,
              "dy": -4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                6,
                3
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                4,
                5
              ],
              "dx": 2,
              "dy": -2,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                6,
                3
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                4,
                5
              ],
              "dx": 2,
              "dy": -2,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                6,
                3
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                4,
                5
              ],
              "dx": 2,
              "dy": -2,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
              2,
              3,
              4,
              5
            ],
            "2": [
              1,
              3,
              4,
              5
            ],
            "3": [
              1,
              2,
              4,
              5
            ],
            "4": [
              1,
              2,
              3,
              5
            ],
            "5": [
              1,
              2,
              3,
              4
            ]
          },
          "visible_openings_candidates": {
            "1": [
              9
            ],
            "2": [
              9
            ],
            "3": [
              9
            ],
            "4": [
              9
            ],
            "5": [
              9
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [],
          "diagnostics": []
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_l47_interview_room.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l52_elevator": {
        "fp_id": "fp_l52_elevator",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l52_elevator",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 3,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 6,
              "col": 5,
              "kind": "base_opening"
            },
            {
              "number": 3,
              "row": 3,
              "col": 8,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 4,
              "row": 6,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 5,
              "row": 7,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 6,
              "row": 0,
              "col": 5,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 7,
              "row": 5,
              "col": 8,
              "kind": "base_persistent_fixture"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [
            "observed_markers[3] cell (6,5) shares a 10x10 cell with marker #2 (W20E6-A: surfaced as diagnostic, not a hard blocker -- distinct marker numbers may genuinely occupy the same coarse cell)"
          ],
          "cell_collision_diagnostics": [
            "observed_markers[3] cell (6,5) shares a 10x10 cell with marker #2 (W20E6-A: surfaced as diagnostic, not a hard blocker -- distinct marker numbers may genuinely occupy the same coarse cell)"
          ],
          "provider_name": "litellm_gpt55_vision_v1"
        },
        "geometry": {
          "fp_id": "fp_l52_elevator",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              3,
              5
            ],
            "2": [
              6,
              5
            ],
            "3": [
              3,
              8
            ],
            "4": [
              6,
              5
            ],
            "5": [
              7,
              5
            ],
            "6": [
              0,
              5
            ],
            "7": [
              5,
              8
            ]
          },
          "unit_marker_cells": {
            "1": [
              3,
              5
            ],
            "4": [
              6,
              5
            ],
            "5": [
              7,
              5
            ]
          },
          "opening_marker_cells": {
            "2": [
              6,
              5
            ]
          },
          "fixture_marker_cells": {
            "3": [
              3,
              8
            ],
            "6": [
              0,
              5
            ],
            "7": [
              5,
              8
            ]
          },
          "furniture_marker_cells": {},
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                3,
                5
              ]
            ],
            "4": [
              [
                6,
                5
              ]
            ],
            "5": [
              [
                7,
                5
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                0,
                5
              ],
              [
                3,
                8
              ],
              [
                5,
                8
              ],
              [
                6,
                5
              ]
            ],
            "4": [
              [
                0,
                5
              ],
              [
                3,
                8
              ],
              [
                5,
                8
              ],
              [
                6,
                5
              ]
            ],
            "5": [
              [
                0,
                5
              ],
              [
                3,
                8
              ],
              [
                5,
                8
              ],
              [
                6,
                5
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                3,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                6,
                5
              ],
              "dx": 0,
              "dy": 3,
              "length_l1": 3
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                3,
                5
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                7,
                5
              ],
              "dx": 0,
              "dy": 4,
              "length_l1": 4
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                6,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                3,
                5
              ],
              "dx": 0,
              "dy": -3,
              "length_l1": 3
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                6,
                5
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                7,
                5
              ],
              "dx": 0,
              "dy": 1,
              "length_l1": 1
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                7,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                3,
                5
              ],
              "dx": 0,
              "dy": -4,
              "length_l1": 4
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                7,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                6,
                5
              ],
              "dx": 0,
              "dy": -1,
              "length_l1": 1
            }
          ],
          "view_cone_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                3,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                6,
                5
              ],
              "dx": 0,
              "dy": 3,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                3,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                6,
                5
              ],
              "dx": 0,
              "dy": 3,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                3,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                6,
                5
              ],
              "dx": 0,
              "dy": 3,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                3,
                5
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                7,
                5
              ],
              "dx": 0,
              "dy": 4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                3,
                5
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                7,
                5
              ],
              "dx": 0,
              "dy": 4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                3,
                5
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                7,
                5
              ],
              "dx": 0,
              "dy": 4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                6,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                3,
                5
              ],
              "dx": 0,
              "dy": -3,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                6,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                3,
                5
              ],
              "dx": 0,
              "dy": -3,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                6,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                3,
                5
              ],
              "dx": 0,
              "dy": -3,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                6,
                5
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                7,
                5
              ],
              "dx": 0,
              "dy": 1,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                6,
                5
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                7,
                5
              ],
              "dx": 0,
              "dy": 1,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                6,
                5
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                7,
                5
              ],
              "dx": 0,
              "dy": 1,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                7,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                3,
                5
              ],
              "dx": 0,
              "dy": -4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                7,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                3,
                5
              ],
              "dx": 0,
              "dy": -4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                7,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                3,
                5
              ],
              "dx": 0,
              "dy": -4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                7,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                6,
                5
              ],
              "dx": 0,
              "dy": -1,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                7,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                6,
                5
              ],
              "dx": 0,
              "dy": -1,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                7,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                6,
                5
              ],
              "dx": 0,
              "dy": -1,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
              4,
              5
            ],
            "4": [
              1,
              5
            ],
            "5": [
              1,
              4
            ]
          },
          "visible_openings_candidates": {
            "1": [
              2
            ],
            "4": [
              2
            ],
            "5": [
              2
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [
            "observed_marker #4 shares 10x10 cell (6,5) with marker #2 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ],
          "diagnostics": [
            "observed_marker #4 shares 10x10 cell (6,5) with marker #2 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ]
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_l52_elevator.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l54_seminar_room": {
        "fp_id": "fp_l54_seminar_room",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l54_seminar_room",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 4,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 1,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 8,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 4,
              "row": 5,
              "col": 8,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 5,
              "row": 1,
              "col": 2,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 6,
              "row": 1,
              "col": 2,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 7,
              "row": 0,
              "col": 5,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 8,
              "row": 8,
              "col": 8,
              "kind": "base_opening"
            },
            {
              "number": 9,
              "row": 8,
              "col": 9,
              "kind": "base_opening"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [
            "observed_markers[5] cell (1,2) shares a 10x10 cell with marker #5 (W20E6-A: surfaced as diagnostic, not a hard blocker -- distinct marker numbers may genuinely occupy the same coarse cell)"
          ],
          "cell_collision_diagnostics": [
            "observed_markers[5] cell (1,2) shares a 10x10 cell with marker #5 (W20E6-A: surfaced as diagnostic, not a hard blocker -- distinct marker numbers may genuinely occupy the same coarse cell)"
          ],
          "provider_name": "litellm_gpt55_vision_v1"
        },
        "geometry": {
          "fp_id": "fp_l54_seminar_room",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              4,
              5
            ],
            "2": [
              1,
              5
            ],
            "3": [
              8,
              5
            ],
            "4": [
              5,
              8
            ],
            "5": [
              1,
              2
            ],
            "6": [
              1,
              2
            ],
            "7": [
              0,
              5
            ],
            "8": [
              8,
              8
            ],
            "9": [
              8,
              9
            ]
          },
          "unit_marker_cells": {
            "1": [
              4,
              5
            ],
            "2": [
              1,
              5
            ],
            "3": [
              8,
              5
            ]
          },
          "opening_marker_cells": {
            "8": [
              8,
              8
            ],
            "9": [
              8,
              9
            ]
          },
          "fixture_marker_cells": {
            "6": [
              1,
              2
            ],
            "7": [
              0,
              5
            ]
          },
          "furniture_marker_cells": {
            "4": [
              5,
              8
            ],
            "5": [
              1,
              2
            ]
          },
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                4,
                5
              ]
            ],
            "2": [
              [
                1,
                5
              ]
            ],
            "3": [
              [
                8,
                5
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                0,
                5
              ],
              [
                1,
                2
              ],
              [
                5,
                8
              ],
              [
                8,
                8
              ],
              [
                8,
                9
              ]
            ],
            "2": [
              [
                0,
                5
              ],
              [
                1,
                2
              ],
              [
                5,
                8
              ],
              [
                8,
                8
              ],
              [
                8,
                9
              ]
            ],
            "3": [
              [
                0,
                5
              ],
              [
                1,
                2
              ],
              [
                5,
                8
              ],
              [
                8,
                8
              ],
              [
                8,
                9
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 0,
              "dy": -3,
              "length_l1": 3
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                5
              ],
              "dx": 0,
              "dy": 4,
              "length_l1": 4
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                5
              ],
              "dx": 0,
              "dy": 3,
              "length_l1": 3
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                5
              ],
              "dx": 0,
              "dy": 7,
              "length_l1": 7
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                5
              ],
              "dx": 0,
              "dy": -4,
              "length_l1": 4
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 0,
              "dy": -7,
              "length_l1": 7
            }
          ],
          "view_cone_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 0,
              "dy": -3,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 0,
              "dy": -3,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 0,
              "dy": -3,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                5
              ],
              "dx": 0,
              "dy": 4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                5
              ],
              "dx": 0,
              "dy": 4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                5
              ],
              "dx": 0,
              "dy": 4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                5
              ],
              "dx": 0,
              "dy": 3,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                5
              ],
              "dx": 0,
              "dy": 3,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                5
              ],
              "dx": 0,
              "dy": 3,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                5
              ],
              "dx": 0,
              "dy": 7,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                5
              ],
              "dx": 0,
              "dy": 7,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                5
              ],
              "dx": 0,
              "dy": 7,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                5
              ],
              "dx": 0,
              "dy": -4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                5
              ],
              "dx": 0,
              "dy": -4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                5
              ],
              "dx": 0,
              "dy": -4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 0,
              "dy": -7,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 0,
              "dy": -7,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 0,
              "dy": -7,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
              2,
              3
            ],
            "2": [
              1,
              3
            ],
            "3": [
              1,
              2
            ]
          },
          "visible_openings_candidates": {
            "1": [
              8,
              9
            ],
            "2": [
              8,
              9
            ],
            "3": [
              8,
              9
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [
            "observed_marker #6 shares 10x10 cell (1,2) with marker #5 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ],
          "diagnostics": [
            "observed_marker #6 shares 10x10 cell (1,2) with marker #5 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ]
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_l54_seminar_room.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l55_seminar_corridor": {
        "fp_id": "fp_l55_seminar_corridor",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l55_seminar_corridor",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 5,
              "col": 1,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 5,
              "col": 7,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 7,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 4,
              "row": 3,
              "col": 4,
              "kind": "base_opening"
            },
            {
              "number": 5,
              "row": 2,
              "col": 5,
              "kind": "base_opening"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [],
          "cell_collision_diagnostics": [],
          "provider_name": "litellm_gpt55_vision_v1"
        },
        "geometry": {
          "fp_id": "fp_l55_seminar_corridor",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              5,
              1
            ],
            "2": [
              5,
              7
            ],
            "3": [
              7,
              4
            ],
            "4": [
              3,
              4
            ],
            "5": [
              2,
              5
            ]
          },
          "unit_marker_cells": {
            "1": [
              5,
              1
            ],
            "2": [
              5,
              7
            ],
            "3": [
              7,
              4
            ]
          },
          "opening_marker_cells": {
            "4": [
              3,
              4
            ],
            "5": [
              2,
              5
            ]
          },
          "fixture_marker_cells": {},
          "furniture_marker_cells": {},
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                5,
                1
              ]
            ],
            "2": [
              [
                5,
                7
              ]
            ],
            "3": [
              [
                7,
                4
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                2,
                5
              ],
              [
                3,
                4
              ]
            ],
            "2": [
              [
                2,
                5
              ],
              [
                3,
                4
              ]
            ],
            "3": [
              [
                2,
                5
              ],
              [
                3,
                4
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                1
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                7
              ],
              "dx": 6,
              "dy": 0,
              "length_l1": 6
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                1
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                4
              ],
              "dx": 3,
              "dy": 2,
              "length_l1": 5
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                5,
                7
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                1
              ],
              "dx": -6,
              "dy": 0,
              "length_l1": 6
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                5,
                7
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                4
              ],
              "dx": -3,
              "dy": 2,
              "length_l1": 5
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                1
              ],
              "dx": -3,
              "dy": -2,
              "length_l1": 5
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                7
              ],
              "dx": 3,
              "dy": -2,
              "length_l1": 5
            }
          ],
          "view_cone_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                1
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                7
              ],
              "dx": 6,
              "dy": 0,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                1
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                7
              ],
              "dx": 6,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                1
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                7
              ],
              "dx": 6,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                1
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                4
              ],
              "dx": 3,
              "dy": 2,
              "lens_enum": "wide",
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            },
            {
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              "camera_cell": [
                5,
                1
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
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              ],
              "dx": 3,
              "dy": 2,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                1
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                4
              ],
              "dx": 3,
              "dy": 2,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                5,
                7
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                1
              ],
              "dx": -6,
              "dy": 0,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                5,
                7
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                1
              ],
              "dx": -6,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                5,
                7
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                1
              ],
              "dx": -6,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                5,
                7
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                4
              ],
              "dx": -3,
              "dy": 2,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                5,
                7
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                4
              ],
              "dx": -3,
              "dy": 2,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                5,
                7
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                4
              ],
              "dx": -3,
              "dy": 2,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                1
              ],
              "dx": -3,
              "dy": -2,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                1
              ],
              "dx": -3,
              "dy": -2,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                1
              ],
              "dx": -3,
              "dy": -2,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                7
              ],
              "dx": 3,
              "dy": -2,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                7
              ],
              "dx": 3,
              "dy": -2,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                7
              ],
              "dx": 3,
              "dy": -2,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
              2,
              3
            ],
            "2": [
              1,
              3
            ],
            "3": [
              1,
              2
            ]
          },
          "visible_openings_candidates": {
            "1": [
              4,
              5
            ],
            "2": [
              4,
              5
            ],
            "3": [
              4,
              5
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [],
          "diagnostics": []
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_l55_seminar_corridor.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l56_briefing_room": {
        "fp_id": "fp_l56_briefing_room",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l56_briefing_room",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 0,
              "col": 8,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 1,
              "col": 3,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 1,
              "col": 4,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 4,
              "row": 0,
              "col": 4,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 5,
              "row": 2,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 6,
              "row": 3,
              "col": 4,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 7,
              "row": 5,
              "col": 4,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 8,
              "row": 4,
              "col": 1,
              "kind": "base_structural_unit"
            },
            {
              "number": 9,
              "row": 4,
              "col": 8,
              "kind": "base_structural_unit"
            },
            {
              "number": 10,
              "row": 7,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 11,
              "row": 8,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 12,
              "row": 9,
              "col": 4,
              "kind": "base_opening"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [],
          "cell_collision_diagnostics": [],
          "provider_name": "litellm_gpt55_vision_v1"
        },
        "geometry": {
          "fp_id": "fp_l56_briefing_room",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              0,
              8
            ],
            "2": [
              1,
              3
            ],
            "3": [
              1,
              4
            ],
            "4": [
              0,
              4
            ],
            "5": [
              2,
              4
            ],
            "6": [
              3,
              4
            ],
            "7": [
              5,
              4
            ],
            "8": [
              4,
              1
            ],
            "9": [
              4,
              8
            ],
            "10": [
              7,
              4
            ],
            "11": [
              8,
              4
            ],
            "12": [
              9,
              4
            ]
          },
          "unit_marker_cells": {
            "1": [
              0,
              8
            ],
            "2": [
              1,
              3
            ],
            "5": [
              2,
              4
            ],
            "8": [
              4,
              1
            ],
            "9": [
              4,
              8
            ],
            "10": [
              7,
              4
            ],
            "11": [
              8,
              4
            ]
          },
          "opening_marker_cells": {
            "12": [
              9,
              4
            ]
          },
          "fixture_marker_cells": {
            "4": [
              0,
              4
            ]
          },
          "furniture_marker_cells": {
            "3": [
              1,
              4
            ],
            "6": [
              3,
              4
            ],
            "7": [
              5,
              4
            ]
          },
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                0,
                8
              ]
            ],
            "2": [
              [
                1,
                3
              ]
            ],
            "5": [
              [
                2,
                4
              ]
            ],
            "8": [
              [
                4,
                1
              ]
            ],
            "9": [
              [
                4,
                8
              ]
            ],
            "10": [
              [
                7,
                4
              ]
            ],
            "11": [
              [
                8,
                4
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                0,
                4
              ],
              [
                1,
                4
              ],
              [
                3,
                4
              ],
              [
                5,
                4
              ],
              [
                9,
                4
              ]
            ],
            "2": [
              [
                0,
                4
              ],
              [
                1,
                4
              ],
              [
                3,
                4
              ],
              [
                5,
                4
              ],
              [
                9,
                4
              ]
            ],
            "5": [
              [
                0,
                4
              ],
              [
                1,
                4
              ],
              [
                3,
                4
              ],
              [
                5,
                4
              ],
              [
                9,
                4
              ]
            ],
            "8": [
              [
                0,
                4
              ],
              [
                1,
                4
              ],
              [
                3,
                4
              ],
              [
                5,
                4
              ],
              [
                9,
                4
              ]
            ],
            "9": [
              [
                0,
                4
              ],
              [
                1,
                4
              ],
              [
                3,
                4
              ],
              [
                5,
                4
              ],
              [
                9,
                4
              ]
            ],
            "10": [
              [
                0,
                4
              ],
              [
                1,
                4
              ],
              [
                3,
                4
              ],
              [
                5,
                4
              ],
              [
                9,
                4
              ]
            ],
            "11": [
              [
                0,
                4
              ],
              [
                1,
                4
              ],
              [
                3,
                4
              ],
              [
                5,
                4
              ],
              [
                9,
                4
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                8
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                3
              ],
              "dx": -5,
              "dy": 1,
              "length_l1": 6
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                8
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                2,
                4
              ],
              "dx": -4,
              "dy": 2,
              "length_l1": 6
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                8
              ],
              "look_at_unit": 8,
              "look_at_cell": [
                4,
                1
              ],
              "dx": -7,
              "dy": 4,
              "length_l1": 11
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                8
              ],
              "look_at_unit": 9,
              "look_at_cell": [
                4,
                8
              ],
              "dx": 0,
              "dy": 4,
              "length_l1": 4
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                8
              ],
              "look_at_unit": 10,
              "look_at_cell": [
                7,
                4
              ],
              "dx": -4,
              "dy": 7,
              "length_l1": 11
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                8
              ],
              "look_at_unit": 11,
              "look_at_cell": [
                8,
                4
              ],
              "dx": -4,
              "dy": 8,
              "length_l1": 12
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                3
              ],
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            {
              "camera_unit": 11,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                3
              ],
              "dx": -1,
              "dy": -7,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 11,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                3
              ],
              "dx": -1,
              "dy": -7,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 11,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                3
              ],
              "dx": -1,
              "dy": -7,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 11,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                2,
                4
              ],
              "dx": 0,
              "dy": -6,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 11,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                2,
                4
              ],
              "dx": 0,
              "dy": -6,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 11,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                2,
                4
              ],
              "dx": 0,
              "dy": -6,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 11,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 8,
              "look_at_cell": [
                4,
                1
              ],
              "dx": -3,
              "dy": -4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 11,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 8,
              "look_at_cell": [
                4,
                1
              ],
              "dx": -3,
              "dy": -4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 11,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 8,
              "look_at_cell": [
                4,
                1
              ],
              "dx": -3,
              "dy": -4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 11,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 9,
              "look_at_cell": [
                4,
                8
              ],
              "dx": 4,
              "dy": -4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 11,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 9,
              "look_at_cell": [
                4,
                8
              ],
              "dx": 4,
              "dy": -4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 11,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 9,
              "look_at_cell": [
                4,
                8
              ],
              "dx": 4,
              "dy": -4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 11,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 10,
              "look_at_cell": [
                7,
                4
              ],
              "dx": 0,
              "dy": -1,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 11,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 10,
              "look_at_cell": [
                7,
                4
              ],
              "dx": 0,
              "dy": -1,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 11,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 10,
              "look_at_cell": [
                7,
                4
              ],
              "dx": 0,
              "dy": -1,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
              2,
              5,
              8,
              9,
              10,
              11
            ],
            "2": [
              1,
              5,
              8,
              9,
              10,
              11
            ],
            "5": [
              1,
              2,
              8,
              9,
              10,
              11
            ],
            "8": [
              1,
              2,
              5,
              9,
              10,
              11
            ],
            "9": [
              1,
              2,
              5,
              8,
              10,
              11
            ],
            "10": [
              1,
              2,
              5,
              8,
              9,
              11
            ],
            "11": [
              1,
              2,
              5,
              8,
              9,
              10
            ]
          },
          "visible_openings_candidates": {
            "1": [
              12
            ],
            "2": [
              12
            ],
            "5": [
              12
            ],
            "8": [
              12
            ],
            "9": [
              12
            ],
            "10": [
              12
            ],
            "11": [
              12
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [],
          "diagnostics": []
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_l56_briefing_room.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l32_investigation_suite": {
        "fp_id": "fp_l32_investigation_suite",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l32_investigation_suite",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 1,
              "col": 3,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 2,
              "col": 3,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 3,
              "col": 3,
              "kind": "base_structural_unit"
            },
            {
              "number": 4,
              "row": 3,
              "col": 4,
              "kind": "base_opening"
            },
            {
              "number": 5,
              "row": 5,
              "col": 1,
              "kind": "base_opening"
            },
            {
              "number": 6,
              "row": 5,
              "col": 5,
              "kind": "base_opening"
            },
            {
              "number": 7,
              "row": 0,
              "col": 0,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 8,
              "row": 2,
              "col": 8,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 9,
              "row": 2,
              "col": 8,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 10,
              "row": 3,
              "col": 8,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 11,
              "row": 0,
              "col": 9,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 12,
              "row": 7,
              "col": 5,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 13,
              "row": 6,
              "col": 3,
              "kind": "base_persistent_furniture"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.92,
          "diagnostics": [
            "Marker number 1 appears twice; the upper occurrence at row 1, col 3 is reported for the unique dossier marker.",
            "observed_markers[8] cell (2,8) shares a 10x10 cell with marker #8 (W20E6-A: surfaced as diagnostic, not a hard blocker -- distinct marker numbers may genuinely occupy the same coarse cell)"
          ],
          "cell_collision_diagnostics": [
            "observed_markers[8] cell (2,8) shares a 10x10 cell with marker #8 (W20E6-A: surfaced as diagnostic, not a hard blocker -- distinct marker numbers may genuinely occupy the same coarse cell)"
          ],
          "provider_name": "litellm_gpt55_vision_v1"
        },
        "geometry": {
          "fp_id": "fp_l32_investigation_suite",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              1,
              3
            ],
            "2": [
              2,
              3
            ],
            "3": [
              3,
              3
            ],
            "4": [
              3,
              4
            ],
            "5": [
              5,
              1
            ],
            "6": [
              5,
              5
            ],
            "7": [
              0,
              0
            ],
            "8": [
              2,
              8
            ],
            "9": [
              2,
              8
            ],
            "10": [
              3,
              8
            ],
            "11": [
              0,
              9
            ],
            "12": [
              7,
              5
            ],
            "13": [
              6,
              3
            ]
          },
          "unit_marker_cells": {
            "1": [
              1,
              3
            ],
            "2": [
              2,
              3
            ],
            "3": [
              3,
              3
            ]
          },
          "opening_marker_cells": {
            "4": [
              3,
              4
            ],
            "5": [
              5,
              1
            ],
            "6": [
              5,
              5
            ]
          },
          "fixture_marker_cells": {},
          "furniture_marker_cells": {
            "7": [
              0,
              0
            ],
            "8": [
              2,
              8
            ],
            "9": [
              2,
              8
            ],
            "10": [
              3,
              8
            ],
            "11": [
              0,
              9
            ],
            "12": [
              7,
              5
            ],
            "13": [
              6,
              3
            ]
          },
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                1,
                3
              ]
            ],
            "2": [
              [
                2,
                3
              ]
            ],
            "3": [
              [
                3,
                3
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                0,
                0
              ],
              [
                0,
                9
              ],
              [
                2,
                8
              ],
              [
                3,
                4
              ],
              [
                3,
                8
              ],
              [
                5,
                1
              ],
              [
                5,
                5
              ],
              [
                6,
                3
              ],
              [
                7,
                5
              ]
            ],
            "2": [
              [
                0,
                0
              ],
              [
                0,
                9
              ],
              [
                2,
                8
              ],
              [
                3,
                4
              ],
              [
                3,
                8
              ],
              [
                5,
                1
              ],
              [
                5,
                5
              ],
              [
                6,
                3
              ],
              [
                7,
                5
              ]
            ],
            "3": [
              [
                0,
                0
              ],
              [
                0,
                9
              ],
              [
                2,
                8
              ],
              [
                3,
                4
              ],
              [
                3,
                8
              ],
              [
                5,
                1
              ],
              [
                5,
                5
              ],
              [
                6,
                3
              ],
              [
                7,
                5
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                1,
                3
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                2,
                3
              ],
              "dx": 0,
              "dy": 1,
              "length_l1": 1
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                1,
                3
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                3
              ],
              "dx": 0,
              "dy": 2,
              "length_l1": 2
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                2,
                3
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                1,
                3
              ],
              "dx": 0,
              "dy": -1,
              "length_l1": 1
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                2,
                3
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                3
              ],
              "dx": 0,
              "dy": 1,
              "length_l1": 1
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                3
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                1,
                3
              ],
              "dx": 0,
              "dy": -2,
              "length_l1": 2
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                3
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                2,
                3
              ],
              "dx": 0,
              "dy": -1,
              "length_l1": 1
            }
          ],
          "view_cone_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                1,
                3
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                2,
                3
              ],
              "dx": 0,
              "dy": 1,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                1,
                3
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                2,
                3
              ],
              "dx": 0,
              "dy": 1,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                1,
                3
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                2,
                3
              ],
              "dx": 0,
              "dy": 1,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                1,
                3
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                3
              ],
              "dx": 0,
              "dy": 2,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                1,
                3
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                3
              ],
              "dx": 0,
              "dy": 2,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                1,
                3
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                3
              ],
              "dx": 0,
              "dy": 2,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                2,
                3
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                1,
                3
              ],
              "dx": 0,
              "dy": -1,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                2,
                3
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                1,
                3
              ],
              "dx": 0,
              "dy": -1,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                2,
                3
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                1,
                3
              ],
              "dx": 0,
              "dy": -1,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                2,
                3
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                3
              ],
              "dx": 0,
              "dy": 1,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                2,
                3
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                3
              ],
              "dx": 0,
              "dy": 1,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                2,
                3
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                3
              ],
              "dx": 0,
              "dy": 1,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                3
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                1,
                3
              ],
              "dx": 0,
              "dy": -2,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                3
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                1,
                3
              ],
              "dx": 0,
              "dy": -2,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                3
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                1,
                3
              ],
              "dx": 0,
              "dy": -2,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                3
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                2,
                3
              ],
              "dx": 0,
              "dy": -1,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                3
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                2,
                3
              ],
              "dx": 0,
              "dy": -1,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                3
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                2,
                3
              ],
              "dx": 0,
              "dy": -1,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
              2,
              3
            ],
            "2": [
              1,
              3
            ],
            "3": [
              1,
              2
            ]
          },
          "visible_openings_candidates": {
            "1": [
              4,
              5,
              6
            ],
            "2": [
              4,
              5,
              6
            ],
            "3": [
              4,
              5,
              6
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [
            "observed_marker #9 shares 10x10 cell (2,8) with marker #8 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ],
          "diagnostics": [
            "observed_marker #9 shares 10x10 cell (2,8) with marker #8 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ]
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_l32_investigation_suite.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l38_solitary_cell": {
        "fp_id": "fp_l38_solitary_cell",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l38_solitary_cell",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 2,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 6,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 7,
              "col": 4,
              "kind": "base_opening"
            },
            {
              "number": 4,
              "row": 3,
              "col": 3,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 5,
              "row": 0,
              "col": 5,
              "kind": "base_opening"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [],
          "cell_collision_diagnostics": [],
          "provider_name": "litellm_gpt55_vision_v1"
        },
        "geometry": {
          "fp_id": "fp_l38_solitary_cell",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              2,
              5
            ],
            "2": [
              6,
              4
            ],
            "3": [
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              4
            ],
            "4": [
              3,
              3
            ],
            "5": [
              0,
              5
            ]
          },
          "unit_marker_cells": {
            "1": [
              2,
              5
            ],
            "2": [
              6,
              4
            ]
          },
          "opening_marker_cells": {
            "3": [
              7,
              4
            ],
            "5": [
              0,
              5
            ]
          },
          "fixture_marker_cells": {},
          "furniture_marker_cells": {
            "4": [
              3,
              3
            ]
          },
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                2,
                5
              ]
            ],
            "2": [
              [
                6,
                4
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                0,
                5
              ],
              [
                3,
                3
              ],
              [
                7,
                4
              ]
            ],
            "2": [
              [
                0,
                5
              ],
              [
                3,
                3
              ],
              [
                7,
                4
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                2,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                6,
                4
              ],
              "dx": -1,
              "dy": 4,
              "length_l1": 5
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                6,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                2,
                5
              ],
              "dx": 1,
              "dy": -4,
              "length_l1": 5
            }
          ],
          "view_cone_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                2,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                6,
                4
              ],
              "dx": -1,
              "dy": 4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                2,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                6,
                4
              ],
              "dx": -1,
              "dy": 4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                2,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                6,
                4
              ],
              "dx": -1,
              "dy": 4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                6,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                2,
                5
              ],
              "dx": 1,
              "dy": -4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                6,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                2,
                5
              ],
              "dx": 1,
              "dy": -4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                6,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                2,
                5
              ],
              "dx": 1,
              "dy": -4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
              2
            ],
            "2": [
              1
            ]
          },
          "visible_openings_candidates": {
            "1": [
              3,
              5
            ],
            "2": [
              3,
              5
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [],
          "diagnostics": []
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_l38_solitary_cell.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l53_visitation_room": {
        "fp_id": "fp_l53_visitation_room",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l53_visitation_room",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 8,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 1,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 4,
              "col": 5,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 4,
              "row": 6,
              "col": 5,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 5,
              "row": 3,
              "col": 5,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 6,
              "row": 5,
              "col": 5,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 7,
              "row": 8,
              "col": 1,
              "kind": "base_opening"
            },
            {
              "number": 8,
              "row": 1,
              "col": 8,
              "kind": "base_opening"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [],
          "cell_collision_diagnostics": [],
          "provider_name": "litellm_gpt55_vision_v1"
        },
        "geometry": {
          "fp_id": "fp_l53_visitation_room",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              8,
              5
            ],
            "2": [
              1,
              5
            ],
            "3": [
              4,
              5
            ],
            "4": [
              6,
              5
            ],
            "5": [
              3,
              5
            ],
            "6": [
              5,
              5
            ],
            "7": [
              8,
              1
            ],
            "8": [
              1,
              8
            ]
          },
          "unit_marker_cells": {
            "1": [
              8,
              5
            ],
            "2": [
              1,
              5
            ]
          },
          "opening_marker_cells": {
            "7": [
              8,
              1
            ],
            "8": [
              1,
              8
            ]
          },
          "fixture_marker_cells": {
            "3": [
              4,
              5
            ],
            "6": [
              5,
              5
            ]
          },
          "furniture_marker_cells": {
            "4": [
              6,
              5
            ],
            "5": [
              3,
              5
            ]
          },
          "camera_cell_candidates_per_unit": {
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              [
                8,
                5
              ]
            ],
            "2": [
              [
                1,
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              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
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              ],
              [
                3,
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              ],
              [
                4,
                5
              ],
              [
                5,
                5
              ],
              [
                6,
                5
              ],
              [
                8,
                1
              ]
            ],
            "2": [
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                1,
                8
              ],
              [
                3,
                5
              ],
              [
                4,
                5
              ],
              [
                5,
                5
              ],
              [
                6,
                5
              ],
              [
                8,
                1
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 0,
              "dy": -7,
              "length_l1": 7
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                8,
                5
              ],
              "dx": 0,
              "dy": 7,
              "length_l1": 7
            }
          ],
          "view_cone_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 0,
              "dy": -7,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 0,
              "dy": -7,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 0,
              "dy": -7,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                8,
                5
              ],
              "dx": 0,
              "dy": 7,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                8,
                5
              ],
              "dx": 0,
              "dy": 7,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                8,
                5
              ],
              "dx": 0,
              "dy": 7,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
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            ],
            "2": [
              1
            ]
          },
          "visible_openings_candidates": {
            "1": [
              7,
              8
            ],
            "2": [
              7,
              8
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [],
          "diagnostics": []
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_l53_visitation_room.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l41_apartment_corridor": {
        "fp_id": "fp_l41_apartment_corridor",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l41_apartment_corridor",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 4,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 2,
              "col": 1,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 4,
              "col": 1,
              "kind": "base_opening"
            },
            {
              "number": 4,
              "row": 6,
              "col": 4,
              "kind": "base_opening"
            },
            {
              "number": 5,
              "row": 3,
              "col": 2,
              "kind": "base_opening"
            },
            {
              "number": 6,
              "row": 3,
              "col": 4,
              "kind": "base_opening"
            },
            {
              "number": 7,
              "row": 3,
              "col": 8,
              "kind": "base_opening"
            },
            {
              "number": 8,
              "row": 2,
              "col": 6,
              "kind": "base_structural_unit"
            },
            {
              "number": 9,
              "row": 3,
              "col": 7,
              "kind": "base_opening"
            },
            {
              "number": 10,
              "row": 2,
              "col": 7,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 11,
              "row": 3,
              "col": 7,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 12,
              "row": 1,
              "col": 6,
              "kind": "base_structural_unit"
            },
            {
              "number": 13,
              "row": 0,
              "col": 1,
              "kind": "base_structural_unit"
            },
            {
              "number": 14,
              "row": 8,
              "col": 4,
              "kind": "base_structural_unit"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [
            "observed_markers[10] cell (3,7) shares a 10x10 cell with marker #9 (W20E6-A: surfaced as diagnostic, not a hard blocker -- distinct marker numbers may genuinely occupy the same coarse cell)"
          ],
          "cell_collision_diagnostics": [
            "observed_markers[10] cell (3,7) shares a 10x10 cell with marker #9 (W20E6-A: surfaced as diagnostic, not a hard blocker -- distinct marker numbers may genuinely occupy the same coarse cell)"
          ],
          "provider_name": "litellm_gpt55_vision_v1"
        },
        "geometry": {
          "fp_id": "fp_l41_apartment_corridor",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              4,
              4
            ],
            "2": [
              2,
              1
            ],
            "3": [
              4,
              1
            ],
            "4": [
              6,
              4
            ],
            "5": [
              3,
              2
            ],
            "6": [
              3,
              4
            ],
            "7": [
              3,
              8
            ],
            "8": [
              2,
              6
            ],
            "9": [
              3,
              7
            ],
            "10": [
              2,
              7
            ],
            "11": [
              3,
              7
            ],
            "12": [
              1,
              6
            ],
            "13": [
              0,
              1
            ],
            "14": [
              8,
              4
            ]
          },
          "unit_marker_cells": {
            "1": [
              4,
              4
            ],
            "2": [
              2,
              1
            ],
            "8": [
              2,
              6
            ],
            "12": [
              1,
              6
            ],
            "13": [
              0,
              1
            ],
            "14": [
              8,
              4
            ]
          },
          "opening_marker_cells": {
            "3": [
              4,
              1
            ],
            "4": [
              6,
              4
            ],
            "5": [
              3,
              2
            ],
            "6": [
              3,
              4
            ],
            "7": [
              3,
              8
            ],
            "9": [
              3,
              7
            ]
          },
          "fixture_marker_cells": {
            "10": [
              2,
              7
            ],
            "11": [
              3,
              7
            ]
          },
          "furniture_marker_cells": {},
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                4,
                4
              ]
            ],
            "2": [
              [
                2,
                1
              ]
            ],
            "8": [
              [
                2,
                6
              ]
            ],
            "12": [
              [
                1,
                6
              ]
            ],
            "13": [
              [
                0,
                1
              ]
            ],
            "14": [
              [
                8,
                4
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                2,
                7
              ],
              [
                3,
                2
              ],
              [
                3,
                4
              ],
              [
                3,
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              ],
              [
                3,
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              ],
              [
                4,
                1
              ],
              [
                6,
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              ]
            ],
            "2": [
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                2,
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              ],
              [
                3,
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              ],
              [
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              ],
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                3,
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              ],
              [
                3,
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              ],
              [
                4,
                1
              ],
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                6,
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              ]
            ],
            "8": [
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                2,
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              ],
              [
                3,
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              ],
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                3,
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              ],
              [
                3,
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              ],
              [
                3,
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              ],
              [
                4,
                1
              ],
              [
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              ]
            ],
            "12": [
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                2,
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              ],
              [
                3,
                2
              ],
              [
                3,
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              ],
              [
                3,
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              ],
              [
                3,
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              ],
              [
                4,
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              ],
              [
                6,
                4
              ]
            ],
            "13": [
              [
                2,
                7
              ],
              [
                3,
                2
              ],
              [
                3,
                4
              ],
              [
                3,
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              ],
              [
                3,
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              ],
              [
                4,
                1
              ],
              [
                6,
                4
              ]
            ],
            "14": [
              [
                2,
                7
              ],
              [
                3,
                2
              ],
              [
                3,
                4
              ],
              [
                3,
                7
              ],
              [
                3,
                8
              ],
              [
                4,
                1
              ],
              [
                6,
                4
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                2,
                1
              ],
              "dx": -3,
              "dy": -2,
              "length_l1": 5
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                4
              ],
              "look_at_unit": 8,
              "look_at_cell": [
                2,
                6
              ],
              "dx": 2,
              "dy": -2,
              "length_l1": 4
            },
            {
              "camera_unit": 1,
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              ],
              "look_at_unit": 12,
              "look_at_cell": [
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              ],
              "dx": 2,
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            },
            {
              "camera_unit": 1,
              "camera_cell": [
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              ],
              "look_at_unit": 13,
              "look_at_cell": [
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              ],
              "dx": -3,
              "dy": -4,
              "length_l1": 7
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                4
              ],
              "look_at_unit": 14,
              "look_at_cell": [
                8,
                4
              ],
              "dx": 0,
              "dy": 4,
              "length_l1": 4
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                2,
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              ],
              "look_at_unit": 1,
              "look_at_cell": [
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              ],
              "dx": 3,
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              "length_l1": 5
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                2,
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              ],
              "look_at_unit": 8,
              "look_at_cell": [
                2,
                6
              ],
              "dx": 5,
              "dy": 0,
              "length_l1": 5
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                2,
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              ],
              "look_at_unit": 12,
              "look_at_cell": [
                1,
                6
              ],
              "dx": 5,
              "dy": -1,
              "length_l1": 6
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                2,
                1
              ],
              "look_at_unit": 13,
              "look_at_cell": [
                0,
                1
              ],
              "dx": 0,
              "dy": -2,
              "length_l1": 2
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                2,
                1
              ],
              "look_at_unit": 14,
              "look_at_cell": [
                8,
                4
              ],
              "dx": 3,
              "dy": 6,
              "length_l1": 9
            },
            {
              "camera_unit": 8,
              "camera_cell": [
                2,
                6
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                4
              ],
              "dx": -2,
              "dy": 2,
              "length_l1": 4
            },
            {
              "camera_unit": 8,
              "camera_cell": [
                2,
                6
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                2,
                1
              ],
              "dx": -5,
              "dy": 0,
              "length_l1": 5
            },
            {
              "camera_unit": 8,
              "camera_cell": [
                2,
                6
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              "dx": -5,
              "dy": -1,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 12,
              "camera_cell": [
                1,
                6
              ],
              "look_at_unit": 13,
              "look_at_cell": [
                0,
                1
              ],
              "dx": -5,
              "dy": -1,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 12,
              "camera_cell": [
                1,
                6
              ],
              "look_at_unit": 14,
              "look_at_cell": [
                8,
                4
              ],
              "dx": -2,
              "dy": 7,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 12,
              "camera_cell": [
                1,
                6
              ],
              "look_at_unit": 14,
              "look_at_cell": [
                8,
                4
              ],
              "dx": -2,
              "dy": 7,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 12,
              "camera_cell": [
                1,
                6
              ],
              "look_at_unit": 14,
              "look_at_cell": [
                8,
                4
              ],
              "dx": -2,
              "dy": 7,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 13,
              "camera_cell": [
                0,
                1
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                4
              ],
              "dx": 3,
              "dy": 4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 13,
              "camera_cell": [
                0,
                1
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                4
              ],
              "dx": 3,
              "dy": 4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 13,
              "camera_cell": [
                0,
                1
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                4
              ],
              "dx": 3,
              "dy": 4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 13,
              "camera_cell": [
                0,
                1
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                2,
                1
              ],
              "dx": 0,
              "dy": 2,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 13,
              "camera_cell": [
                0,
                1
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                2,
                1
              ],
              "dx": 0,
              "dy": 2,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 13,
              "camera_cell": [
                0,
                1
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                2,
                1
              ],
              "dx": 0,
              "dy": 2,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 13,
              "camera_cell": [
                0,
                1
              ],
              "look_at_unit": 8,
              "look_at_cell": [
                2,
                6
              ],
              "dx": 5,
              "dy": 2,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 13,
              "camera_cell": [
                0,
                1
              ],
              "look_at_unit": 8,
              "look_at_cell": [
                2,
                6
              ],
              "dx": 5,
              "dy": 2,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 13,
              "camera_cell": [
                0,
                1
              ],
              "look_at_unit": 8,
              "look_at_cell": [
                2,
                6
              ],
              "dx": 5,
              "dy": 2,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 13,
              "camera_cell": [
                0,
                1
              ],
              "look_at_unit": 12,
              "look_at_cell": [
                1,
                6
              ],
              "dx": 5,
              "dy": 1,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 13,
              "camera_cell": [
                0,
                1
              ],
              "look_at_unit": 12,
              "look_at_cell": [
                1,
                6
              ],
              "dx": 5,
              "dy": 1,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 13,
              "camera_cell": [
                0,
                1
              ],
              "look_at_unit": 12,
              "look_at_cell": [
                1,
                6
              ],
              "dx": 5,
              "dy": 1,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 13,
              "camera_cell": [
                0,
                1
              ],
              "look_at_unit": 14,
              "look_at_cell": [
                8,
                4
              ],
              "dx": 3,
              "dy": 8,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 13,
              "camera_cell": [
                0,
                1
              ],
              "look_at_unit": 14,
              "look_at_cell": [
                8,
                4
              ],
              "dx": 3,
              "dy": 8,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 13,
              "camera_cell": [
                0,
                1
              ],
              "look_at_unit": 14,
              "look_at_cell": [
                8,
                4
              ],
              "dx": 3,
              "dy": 8,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 14,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                4
              ],
              "dx": 0,
              "dy": -4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 14,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                4
              ],
              "dx": 0,
              "dy": -4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 14,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                4
              ],
              "dx": 0,
              "dy": -4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 14,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                2,
                1
              ],
              "dx": -3,
              "dy": -6,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 14,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                2,
                1
              ],
              "dx": -3,
              "dy": -6,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 14,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                2,
                1
              ],
              "dx": -3,
              "dy": -6,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 14,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 8,
              "look_at_cell": [
                2,
                6
              ],
              "dx": 2,
              "dy": -6,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 14,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 8,
              "look_at_cell": [
                2,
                6
              ],
              "dx": 2,
              "dy": -6,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 14,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 8,
              "look_at_cell": [
                2,
                6
              ],
              "dx": 2,
              "dy": -6,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 14,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 12,
              "look_at_cell": [
                1,
                6
              ],
              "dx": 2,
              "dy": -7,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 14,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 12,
              "look_at_cell": [
                1,
                6
              ],
              "dx": 2,
              "dy": -7,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 14,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 12,
              "look_at_cell": [
                1,
                6
              ],
              "dx": 2,
              "dy": -7,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 14,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 13,
              "look_at_cell": [
                0,
                1
              ],
              "dx": -3,
              "dy": -8,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 14,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 13,
              "look_at_cell": [
                0,
                1
              ],
              "dx": -3,
              "dy": -8,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 14,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 13,
              "look_at_cell": [
                0,
                1
              ],
              "dx": -3,
              "dy": -8,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
              2,
              8,
              12,
              13,
              14
            ],
            "2": [
              1,
              8,
              12,
              13,
              14
            ],
            "8": [
              1,
              2,
              12,
              13,
              14
            ],
            "12": [
              1,
              2,
              8,
              13,
              14
            ],
            "13": [
              1,
              2,
              8,
              12,
              14
            ],
            "14": [
              1,
              2,
              8,
              12,
              13
            ]
          },
          "visible_openings_candidates": {
            "1": [
              3,
              4,
              5,
              6,
              7,
              9
            ],
            "2": [
              3,
              4,
              5,
              6,
              7,
              9
            ],
            "8": [
              3,
              4,
              5,
              6,
              7,
              9
            ],
            "12": [
              3,
              4,
              5,
              6,
              7,
              9
            ],
            "13": [
              3,
              4,
              5,
              6,
              7,
              9
            ],
            "14": [
              3,
              4,
              5,
              6,
              7,
              9
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [
            "observed_marker #11 shares 10x10 cell (3,7) with marker #9 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ],
          "diagnostics": [
            "observed_marker #11 shares 10x10 cell (3,7) with marker #9 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ]
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_l41_apartment_corridor.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l42_living_dining_area": {
        "fp_id": "fp_l42_living_dining_area",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l42_living_dining_area",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 3,
              "col": 3,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 7,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 1,
              "col": 3,
              "kind": "base_structural_unit"
            },
            {
              "number": 4,
              "row": 8,
              "col": 3,
              "kind": "base_opening"
            },
            {
              "number": 5,
              "row": 2,
              "col": 3,
              "kind": "base_opening"
            },
            {
              "number": 6,
              "row": 0,
              "col": 6,
              "kind": "base_opening"
            },
            {
              "number": 7,
              "row": 5,
              "col": 5,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 8,
              "row": 5,
              "col": 6,
              "kind": "base_persistent_furniture"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [],
          "cell_collision_diagnostics": [],
          "provider_name": "litellm_gpt55_vision_v1"
        },
        "geometry": {
          "fp_id": "fp_l42_living_dining_area",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              3,
              3
            ],
            "2": [
              7,
              4
            ],
            "3": [
              1,
              3
            ],
            "4": [
              8,
              3
            ],
            "5": [
              2,
              3
            ],
            "6": [
              0,
              6
            ],
            "7": [
              5,
              5
            ],
            "8": [
              5,
              6
            ]
          },
          "unit_marker_cells": {
            "1": [
              3,
              3
            ],
            "2": [
              7,
              4
            ],
            "3": [
              1,
              3
            ]
          },
          "opening_marker_cells": {
            "4": [
              8,
              3
            ],
            "5": [
              2,
              3
            ],
            "6": [
              0,
              6
            ]
          },
          "fixture_marker_cells": {},
          "furniture_marker_cells": {
            "7": [
              5,
              5
            ],
            "8": [
              5,
              6
            ]
          },
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                3,
                3
              ]
            ],
            "2": [
              [
                7,
                4
              ]
            ],
            "3": [
              [
                1,
                3
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                0,
                6
              ],
              [
                2,
                3
              ],
              [
                5,
                5
              ],
              [
                5,
                6
              ],
              [
                8,
                3
              ]
            ],
            "2": [
              [
                0,
                6
              ],
              [
                2,
                3
              ],
              [
                5,
                5
              ],
              [
                5,
                6
              ],
              [
                8,
                3
              ]
            ],
            "3": [
              [
                0,
                6
              ],
              [
                2,
                3
              ],
              [
                5,
                5
              ],
              [
                5,
                6
              ],
              [
                8,
                3
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                3,
                3
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                7,
                4
              ],
              "dx": 1,
              "dy": 4,
              "length_l1": 5
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                3,
                3
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                1,
                3
              ],
              "dx": 0,
              "dy": -2,
              "length_l1": 2
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                7,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                3,
                3
              ],
              "dx": -1,
              "dy": -4,
              "length_l1": 5
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                7,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                1,
                3
              ],
              "dx": -1,
              "dy": -6,
              "length_l1": 7
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                1,
                3
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                3,
                3
              ],
              "dx": 0,
              "dy": 2,
              "length_l1": 2
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                1,
                3
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                7,
                4
              ],
              "dx": 1,
              "dy": 6,
              "length_l1": 7
            }
          ],
          "view_cone_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                3,
                3
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                7,
                4
              ],
              "dx": 1,
              "dy": 4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                3,
                3
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                7,
                4
              ],
              "dx": 1,
              "dy": 4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                3,
                3
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                7,
                4
              ],
              "dx": 1,
              "dy": 4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                3,
                3
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                1,
                3
              ],
              "dx": 0,
              "dy": -2,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                3,
                3
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                1,
                3
              ],
              "dx": 0,
              "dy": -2,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                3,
                3
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                1,
                3
              ],
              "dx": 0,
              "dy": -2,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                7,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                3,
                3
              ],
              "dx": -1,
              "dy": -4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                7,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                3,
                3
              ],
              "dx": -1,
              "dy": -4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                7,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                3,
                3
              ],
              "dx": -1,
              "dy": -4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                7,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                1,
                3
              ],
              "dx": -1,
              "dy": -6,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                7,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                1,
                3
              ],
              "dx": -1,
              "dy": -6,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                7,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                1,
                3
              ],
              "dx": -1,
              "dy": -6,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                1,
                3
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                3,
                3
              ],
              "dx": 0,
              "dy": 2,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                1,
                3
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                3,
                3
              ],
              "dx": 0,
              "dy": 2,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                1,
                3
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                3,
                3
              ],
              "dx": 0,
              "dy": 2,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                1,
                3
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                7,
                4
              ],
              "dx": 1,
              "dy": 6,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                1,
                3
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                7,
                4
              ],
              "dx": 1,
              "dy": 6,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                1,
                3
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                7,
                4
              ],
              "dx": 1,
              "dy": 6,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
              2,
              3
            ],
            "2": [
              1,
              3
            ],
            "3": [
              1,
              2
            ]
          },
          "visible_openings_candidates": {
            "1": [
              4,
              5,
              6
            ],
            "2": [
              4,
              5,
              6
            ],
            "3": [
              4,
              5,
              6
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [],
          "diagnostics": []
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_l42_living_dining_area.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l43_classroom": {
        "fp_id": "fp_l43_classroom",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l43_classroom",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 2,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 2,
              "col": 8,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 4,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 4,
              "row": 2,
              "col": 1,
              "kind": "base_structural_unit"
            },
            {
              "number": 5,
              "row": 8,
              "col": 4,
              "kind": "base_opening"
            },
            {
              "number": 6,
              "row": 1,
              "col": 1,
              "kind": "base_opening"
            },
            {
              "number": 7,
              "row": 5,
              "col": 9,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 8,
              "row": 5,
              "col": 8,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 9,
              "row": 6,
              "col": 4,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 10,
              "row": 0,
              "col": 5,
              "kind": "base_persistent_fixture"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [],
          "cell_collision_diagnostics": [],
          "provider_name": "litellm_gpt55_vision_v1"
        },
        "geometry": {
          "fp_id": "fp_l43_classroom",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              2,
              4
            ],
            "2": [
              2,
              8
            ],
            "3": [
              4,
              4
            ],
            "4": [
              2,
              1
            ],
            "5": [
              8,
              4
            ],
            "6": [
              1,
              1
            ],
            "7": [
              5,
              9
            ],
            "8": [
              5,
              8
            ],
            "9": [
              6,
              4
            ],
            "10": [
              0,
              5
            ]
          },
          "unit_marker_cells": {
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              2,
              4
            ],
            "2": [
              2,
              8
            ],
            "3": [
              4,
              4
            ],
            "4": [
              2,
              1
            ]
          },
          "opening_marker_cells": {
            "5": [
              8,
              4
            ],
            "6": [
              1,
              1
            ]
          },
          "fixture_marker_cells": {
            "10": [
              0,
              5
            ]
          },
          "furniture_marker_cells": {
            "7": [
              5,
              9
            ],
            "8": [
              5,
              8
            ],
            "9": [
              6,
              4
            ]
          },
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                2,
                4
              ]
            ],
            "2": [
              [
                2,
                8
              ]
            ],
            "3": [
              [
                4,
                4
              ]
            ],
            "4": [
              [
                2,
                1
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                0,
                5
              ],
              [
                1,
                1
              ],
              [
                5,
                8
              ],
              [
                5,
                9
              ],
              [
                6,
                4
              ],
              [
                8,
                4
              ]
            ],
            "2": [
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                0,
                5
              ],
              [
                1,
                1
              ],
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              ],
              [
                5,
                9
              ],
              [
                6,
                4
              ],
              [
                8,
                4
              ]
            ],
            "3": [
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                0,
                5
              ],
              [
                1,
                1
              ],
              [
                5,
                8
              ],
              [
                5,
                9
              ],
              [
                6,
                4
              ],
              [
                8,
                4
              ]
            ],
            "4": [
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                0,
                5
              ],
              [
                1,
                1
              ],
              [
                5,
                8
              ],
              [
                5,
                9
              ],
              [
                6,
                4
              ],
              [
                8,
                4
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                2,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                2,
                8
              ],
              "dx": 4,
              "dy": 0,
              "length_l1": 4
            },
            {
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            {
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              "dx": -7,
              "dy": 0,
              "length_l1": 7
            },
            {
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            {
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              "dy": -2,
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            {
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              "length_l1": 5
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            {
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            {
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              "look_at_unit": 2,
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              "dx": 7,
              "dy": 0,
              "length_l1": 7
            },
            {
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              "look_at_unit": 3,
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              "dx": 3,
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              "length_l1": 5
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          ],
          "view_cone_records": [
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            {
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            {
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          "visible_units_candidates": {
            "1": [
              2,
              3,
              4
            ],
            "2": [
              1,
              3,
              4
            ],
            "3": [
              1,
              2,
              4
            ],
            "4": [
              1,
              2,
              3
            ]
          },
          "visible_openings_candidates": {
            "1": [
              5,
              6
            ],
            "2": [
              5,
              6
            ],
            "3": [
              5,
              6
            ],
            "4": [
              5,
              6
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [],
          "diagnostics": []
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_l43_classroom.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l45_main_living_dining": {
        "fp_id": "fp_l45_main_living_dining",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l45_main_living_dining",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 5,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 5,
              "col": 8,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 8,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 4,
              "row": 1,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 5,
              "row": 7,
              "col": 4,
              "kind": "base_opening"
            },
            {
              "number": 6,
              "row": 0,
              "col": 5,
              "kind": "base_opening"
            },
            {
              "number": 7,
              "row": 4,
              "col": 6,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 8,
              "row": 4,
              "col": 6,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 9,
              "row": 3,
              "col": 8,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 10,
              "row": 5,
              "col": 8,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 11,
              "row": 9,
              "col": 5,
              "kind": "base_persistent_fixture"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [
            "Marker 8 is displayed at multiple chair locations; its group centroid cell is reported.",
            "observed_markers[7] cell (4,6) shares a 10x10 cell with marker #7 (W20E6-A: surfaced as diagnostic, not a hard blocker -- distinct marker numbers may genuinely occupy the same coarse cell)",
            "observed_markers[9] cell (5,8) shares a 10x10 cell with marker #2 (W20E6-A: surfaced as diagnostic, not a hard blocker -- distinct marker numbers may genuinely occupy the same coarse cell)"
          ],
          "cell_collision_diagnostics": [
            "observed_markers[7] cell (4,6) shares a 10x10 cell with marker #7 (W20E6-A: surfaced as diagnostic, not a hard blocker -- distinct marker numbers may genuinely occupy the same coarse cell)",
            "observed_markers[9] cell (5,8) shares a 10x10 cell with marker #2 (W20E6-A: surfaced as diagnostic, not a hard blocker -- distinct marker numbers may genuinely occupy the same coarse cell)"
          ],
          "provider_name": "litellm_gpt55_vision_v1"
        },
        "geometry": {
          "fp_id": "fp_l45_main_living_dining",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              5,
              4
            ],
            "2": [
              5,
              8
            ],
            "3": [
              8,
              4
            ],
            "4": [
              1,
              4
            ],
            "5": [
              7,
              4
            ],
            "6": [
              0,
              5
            ],
            "7": [
              4,
              6
            ],
            "8": [
              4,
              6
            ],
            "9": [
              3,
              8
            ],
            "10": [
              5,
              8
            ],
            "11": [
              9,
              5
            ]
          },
          "unit_marker_cells": {
            "1": [
              5,
              4
            ],
            "2": [
              5,
              8
            ],
            "3": [
              8,
              4
            ],
            "4": [
              1,
              4
            ]
          },
          "opening_marker_cells": {
            "5": [
              7,
              4
            ],
            "6": [
              0,
              5
            ]
          },
          "fixture_marker_cells": {
            "9": [
              3,
              8
            ],
            "10": [
              5,
              8
            ],
            "11": [
              9,
              5
            ]
          },
          "furniture_marker_cells": {
            "7": [
              4,
              6
            ],
            "8": [
              4,
              6
            ]
          },
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                5,
                4
              ]
            ],
            "2": [
              [
                5,
                8
              ]
            ],
            "3": [
              [
                8,
                4
              ]
            ],
            "4": [
              [
                1,
                4
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                0,
                5
              ],
              [
                3,
                8
              ],
              [
                4,
                6
              ],
              [
                5,
                8
              ],
              [
                7,
                4
              ],
              [
                9,
                5
              ]
            ],
            "2": [
              [
                0,
                5
              ],
              [
                3,
                8
              ],
              [
                4,
                6
              ],
              [
                5,
                8
              ],
              [
                7,
                4
              ],
              [
                9,
                5
              ]
            ],
            "3": [
              [
                0,
                5
              ],
              [
                3,
                8
              ],
              [
                4,
                6
              ],
              [
                5,
                8
              ],
              [
                7,
                4
              ],
              [
                9,
                5
              ]
            ],
            "4": [
              [
                0,
                5
              ],
              [
                3,
                8
              ],
              [
                4,
                6
              ],
              [
                5,
                8
              ],
              [
                7,
                4
              ],
              [
                9,
                5
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                8
              ],
              "dx": 4,
              "dy": 0,
              "length_l1": 4
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                4
              ],
              "dx": 0,
              "dy": 3,
              "length_l1": 3
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                4
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                1,
                4
              ],
              "dx": 0,
              "dy": -4,
              "length_l1": 4
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                5,
                8
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                4
              ],
              "dx": -4,
              "dy": 0,
              "length_l1": 4
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                5,
                8
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                4
              ],
              "dx": -4,
              "dy": 3,
              "length_l1": 7
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                5,
                8
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                1,
                4
              ],
              "dx": -4,
              "dy": -4,
              "length_l1": 8
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                4
              ],
              "dx": 0,
              "dy": -3,
              "length_l1": 3
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                8
              ],
              "dx": 4,
              "dy": -3,
              "length_l1": 7
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                1,
                4
              ],
              "dx": 0,
              "dy": -7,
              "length_l1": 7
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                4
              ],
              "dx": 0,
              "dy": 4,
              "length_l1": 4
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                8
              ],
              "dx": 4,
              "dy": 4,
              "length_l1": 8
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                4
              ],
              "dx": 0,
              "dy": 7,
              "length_l1": 7
            }
          ],
          "view_cone_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                8
              ],
              "dx": 4,
              "dy": 0,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                8
              ],
              "dx": 4,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                8
              ],
              "dx": 4,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                4
              ],
              "dx": 0,
              "dy": 3,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                4
              ],
              "dx": 0,
              "dy": 3,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                4
              ],
              "dx": 0,
              "dy": 3,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                4
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                1,
                4
              ],
              "dx": 0,
              "dy": -4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                4
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                1,
                4
              ],
              "dx": 0,
              "dy": -4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                4
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                1,
                4
              ],
              "dx": 0,
              "dy": -4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                5,
                8
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                4
              ],
              "dx": -4,
              "dy": 0,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                5,
                8
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                4
              ],
              "dx": -4,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                5,
                8
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                4
              ],
              "dx": -4,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                5,
                8
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                4
              ],
              "dx": -4,
              "dy": 3,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                5,
                8
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                4
              ],
              "dx": -4,
              "dy": 3,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                5,
                8
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                4
              ],
              "dx": -4,
              "dy": 3,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                5,
                8
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                1,
                4
              ],
              "dx": -4,
              "dy": -4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                5,
                8
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                1,
                4
              ],
              "dx": -4,
              "dy": -4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                5,
                8
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                1,
                4
              ],
              "dx": -4,
              "dy": -4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                4
              ],
              "dx": 0,
              "dy": -3,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                4
              ],
              "dx": 0,
              "dy": -3,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                4
              ],
              "dx": 0,
              "dy": -3,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                8
              ],
              "dx": 4,
              "dy": -3,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                8
              ],
              "dx": 4,
              "dy": -3,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                8
              ],
              "dx": 4,
              "dy": -3,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                1,
                4
              ],
              "dx": 0,
              "dy": -7,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                1,
                4
              ],
              "dx": 0,
              "dy": -7,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                1,
                4
              ],
              "dx": 0,
              "dy": -7,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                4
              ],
              "dx": 0,
              "dy": 4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                4
              ],
              "dx": 0,
              "dy": 4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                4
              ],
              "dx": 0,
              "dy": 4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                8
              ],
              "dx": 4,
              "dy": 4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                8
              ],
              "dx": 4,
              "dy": 4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                8
              ],
              "dx": 4,
              "dy": 4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                4
              ],
              "dx": 0,
              "dy": 7,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                4
              ],
              "dx": 0,
              "dy": 7,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                4
              ],
              "dx": 0,
              "dy": 7,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
              2,
              3,
              4
            ],
            "2": [
              1,
              3,
              4
            ],
            "3": [
              1,
              2,
              4
            ],
            "4": [
              1,
              2,
              3
            ]
          },
          "visible_openings_candidates": {
            "1": [
              5,
              6
            ],
            "2": [
              5,
              6
            ],
            "3": [
              5,
              6
            ],
            "4": [
              5,
              6
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [
            "observed_marker #8 shares 10x10 cell (4,6) with marker #7 (W20E6-A: surfaced as diagnostic, not a hard failure)",
            "observed_marker #10 shares 10x10 cell (5,8) with marker #2 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ],
          "diagnostics": [
            "observed_marker #8 shares 10x10 cell (4,6) with marker #7 (W20E6-A: surfaced as diagnostic, not a hard failure)",
            "observed_marker #10 shares 10x10 cell (5,8) with marker #2 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ]
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_l45_main_living_dining.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 2,
        "readback_attempts": 2
      },
      "fp_cafe_interior": {
        "fp_id": "fp_cafe_interior",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_cafe_interior",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 8,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 5,
              "col": 7,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 3,
              "col": 2,
              "kind": "base_structural_unit"
            },
            {
              "number": 4,
              "row": 4,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 5,
              "row": 1,
              "col": 7,
              "kind": "base_structural_unit"
            },
            {
              "number": 6,
              "row": 1,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 7,
              "row": 8,
              "col": 5,
              "kind": "base_opening"
            },
            {
              "number": 8,
              "row": 9,
              "col": 2,
              "kind": "base_opening"
            },
            {
              "number": 9,
              "row": 1,
              "col": 6,
              "kind": "base_opening"
            },
            {
              "number": 10,
              "row": 2,
              "col": 7,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 11,
              "row": 6,
              "col": 2,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 12,
              "row": 3,
              "col": 3,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 13,
              "row": 0,
              "col": 4,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 14,
              "row": 2,
              "col": 1,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 15,
              "row": 3,
              "col": 1,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 16,
              "row": 1,
              "col": 7,
              "kind": "base_persistent_fixture"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [
            "Marker 8 is visibly repeated at two storefront glazing segments; the left occurrence is recorded.",
            "observed_markers[15] cell (1,7) shares a 10x10 cell with marker #5 (W20E6-A: surfaced as diagnostic, not a hard blocker -- distinct marker numbers may genuinely occupy the same coarse cell)"
          ],
          "cell_collision_diagnostics": [
            "observed_markers[15] cell (1,7) shares a 10x10 cell with marker #5 (W20E6-A: surfaced as diagnostic, not a hard blocker -- distinct marker numbers may genuinely occupy the same coarse cell)"
          ],
          "provider_name": "litellm_gpt55_vision_v1"
        },
        "geometry": {
          "fp_id": "fp_cafe_interior",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              8,
              4
            ],
            "2": [
              5,
              7
            ],
            "3": [
              3,
              2
            ],
            "4": [
              4,
              5
            ],
            "5": [
              1,
              7
            ],
            "6": [
              1,
              4
            ],
            "7": [
              8,
              5
            ],
            "8": [
              9,
              2
            ],
            "9": [
              1,
              6
            ],
            "10": [
              2,
              7
            ],
            "11": [
              6,
              2
            ],
            "12": [
              3,
              3
            ],
            "13": [
              0,
              4
            ],
            "14": [
              2,
              1
            ],
            "15": [
              3,
              1
            ],
            "16": [
              1,
              7
            ]
          },
          "unit_marker_cells": {
            "1": [
              8,
              4
            ],
            "2": [
              5,
              7
            ],
            "3": [
              3,
              2
            ],
            "4": [
              4,
              5
            ],
            "5": [
              1,
              7
            ],
            "6": [
              1,
              4
            ]
          },
          "opening_marker_cells": {
            "7": [
              8,
              5
            ],
            "8": [
              9,
              2
            ],
            "9": [
              1,
              6
            ]
          },
          "fixture_marker_cells": {
            "13": [
              0,
              4
            ],
            "14": [
              2,
              1
            ],
            "15": [
              3,
              1
            ],
            "16": [
              1,
              7
            ]
          },
          "furniture_marker_cells": {
            "10": [
              2,
              7
            ],
            "11": [
              6,
              2
            ],
            "12": [
              3,
              3
            ]
          },
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                8,
                4
              ]
            ],
            "2": [
              [
                5,
                7
              ]
            ],
            "3": [
              [
                3,
                2
              ]
            ],
            "4": [
              [
                4,
                5
              ]
            ],
            "5": [
              [
                1,
                7
              ]
            ],
            "6": [
              [
                1,
                4
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                0,
                4
              ],
              [
                1,
                6
              ],
              [
                1,
                7
              ],
              [
                2,
                1
              ],
              [
                2,
                7
              ],
              [
                3,
                1
              ],
              [
                3,
                3
              ],
              [
                6,
                2
              ],
              [
                8,
                5
              ],
              [
                9,
                2
              ]
            ],
            "2": [
              [
                0,
                4
              ],
              [
                1,
                6
              ],
              [
                1,
                7
              ],
              [
                2,
                1
              ],
              [
                2,
                7
              ],
              [
                3,
                1
              ],
              [
                3,
                3
              ],
              [
                6,
                2
              ],
              [
                8,
                5
              ],
              [
                9,
                2
              ]
            ],
            "3": [
              [
                0,
                4
              ],
              [
                1,
                6
              ],
              [
                1,
                7
              ],
              [
                2,
                1
              ],
              [
                2,
                7
              ],
              [
                3,
                1
              ],
              [
                3,
                3
              ],
              [
                6,
                2
              ],
              [
                8,
                5
              ],
              [
                9,
                2
              ]
            ],
            "4": [
              [
                0,
                4
              ],
              [
                1,
                6
              ],
              [
                1,
                7
              ],
              [
                2,
                1
              ],
              [
                2,
                7
              ],
              [
                3,
                1
              ],
              [
                3,
                3
              ],
              [
                6,
                2
              ],
              [
                8,
                5
              ],
              [
                9,
                2
              ]
            ],
            "5": [
              [
                0,
                4
              ],
              [
                1,
                6
              ],
              [
                1,
                7
              ],
              [
                2,
                1
              ],
              [
                2,
                7
              ],
              [
                3,
                1
              ],
              [
                3,
                3
              ],
              [
                6,
                2
              ],
              [
                8,
                5
              ],
              [
                9,
                2
              ]
            ],
            "6": [
              [
                0,
                4
              ],
              [
                1,
                6
              ],
              [
                1,
                7
              ],
              [
                2,
                1
              ],
              [
                2,
                7
              ],
              [
                3,
                1
              ],
              [
                3,
                3
              ],
              [
                6,
                2
              ],
              [
                8,
                5
              ],
              [
                9,
                2
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                7
              ],
              "dx": 3,
              "dy": -3,
              "length_l1": 6
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                2
              ],
              "dx": -2,
              "dy": -5,
              "length_l1": 7
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                4,
                5
              ],
              "dx": 1,
              "dy": -4,
              "length_l1": 5
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                1,
                7
              ],
              "dx": 3,
              "dy": -7,
              "length_l1": 10
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 6,
              "look_at_cell": [
                1,
                4
              ],
              "dx": 0,
              "dy": -7,
              "length_l1": 7
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                5,
                7
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                8,
                4
              ],
              "dx": -3,
              "dy": 3,
              "length_l1": 6
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                5,
                7
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                2
              ],
              "dx": -5,
              "dy": -2,
              "length_l1": 7
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                5,
                7
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                4,
                5
              ],
              "dx": -2,
              "dy": -1,
              "length_l1": 3
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                5,
                7
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                1,
                7
              ],
              "dx": 0,
              "dy": -4,
              "length_l1": 4
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                5,
                7
              ],
              "look_at_unit": 6,
              "look_at_cell": [
                1,
                4
              ],
              "dx": -3,
              "dy": -4,
              "length_l1": 7
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                2
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                8,
                4
              ],
              "dx": 2,
              "dy": 5,
              "length_l1": 7
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                2
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                7
              ],
              "dx": 5,
              "dy": 2,
              "length_l1": 7
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                2
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                4,
                5
              ],
              "dx": 3,
              "dy": 1,
              "length_l1": 4
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                2
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                1,
                7
              ],
              "dx": 5,
              "dy": -2,
              "length_l1": 7
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                2
              ],
              "look_at_unit": 6,
              "look_at_cell": [
                1,
                4
              ],
              "dx": 2,
              "dy": -2,
              "length_l1": 4
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                4,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                8,
                4
              ],
              "dx": -1,
              "dy": 4,
              "length_l1": 5
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                4,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                7
              ],
              "dx": 2,
              "dy": 1,
              "length_l1": 3
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                4,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                2
              ],
              "dx": -3,
              "dy": -1,
              "length_l1": 4
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                4,
                5
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                1,
                7
              ],
              "dx": 2,
              "dy": -3,
              "length_l1": 5
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                4,
                5
              ],
              "look_at_unit": 6,
              "look_at_cell": [
                1,
                4
              ],
              "dx": -1,
              "dy": -3,
              "length_l1": 4
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                1,
                7
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                8,
                4
              ],
              "dx": -3,
              "dy": 7,
              "length_l1": 10
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                1,
                7
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                7
              ],
              "dx": 0,
              "dy": 4,
              "length_l1": 4
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                1,
                7
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                2
              ],
              "dx": -5,
              "dy": 2,
              "length_l1": 7
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                1,
                7
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                4,
                5
              ],
              "dx": -2,
              "dy": 3,
              "length_l1": 5
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                1,
                7
              ],
              "look_at_unit": 6,
              "look_at_cell": [
                1,
                4
              ],
              "dx": -3,
              "dy": 0,
              "length_l1": 3
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                8,
                4
              ],
              "dx": 0,
              "dy": 7,
              "length_l1": 7
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                7
              ],
              "dx": 3,
              "dy": 4,
              "length_l1": 7
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                2
              ],
              "dx": -2,
              "dy": 2,
              "length_l1": 4
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                4,
                5
              ],
              "dx": 1,
              "dy": 3,
              "length_l1": 4
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                1,
                7
              ],
              "dx": 3,
              "dy": 0,
              "length_l1": 3
            }
          ],
          "view_cone_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                7
              ],
              "dx": 3,
              "dy": -3,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                7
              ],
              "dx": 3,
              "dy": -3,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                7
              ],
              "dx": 3,
              "dy": -3,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                2
              ],
              "dx": -2,
              "dy": -5,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                2
              ],
              "dx": -2,
              "dy": -5,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                2
              ],
              "dx": -2,
              "dy": -5,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                4,
                5
              ],
              "dx": 1,
              "dy": -4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                4,
                5
              ],
              "dx": 1,
              "dy": -4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                4,
                5
              ],
              "dx": 1,
              "dy": -4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                1,
                7
              ],
              "dx": 3,
              "dy": -7,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                1,
                7
              ],
              "dx": 3,
              "dy": -7,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                1,
                7
              ],
              "dx": 3,
              "dy": -7,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 6,
              "look_at_cell": [
                1,
                4
              ],
              "dx": 0,
              "dy": -7,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 6,
              "look_at_cell": [
                1,
                4
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              ],
              "look_at_unit": 4,
              "look_at_cell": [
                4,
                5
              ],
              "dx": 1,
              "dy": 3,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                4,
                5
              ],
              "dx": 1,
              "dy": 3,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                1,
                7
              ],
              "dx": 3,
              "dy": 0,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                1,
                7
              ],
              "dx": 3,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                1,
                7
              ],
              "dx": 3,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
              2,
              3,
              4,
              5,
              6
            ],
            "2": [
              1,
              3,
              4,
              5,
              6
            ],
            "3": [
              1,
              2,
              4,
              5,
              6
            ],
            "4": [
              1,
              2,
              3,
              5,
              6
            ],
            "5": [
              1,
              2,
              3,
              4,
              6
            ],
            "6": [
              1,
              2,
              3,
              4,
              5
            ]
          },
          "visible_openings_candidates": {
            "1": [
              7,
              8,
              9
            ],
            "2": [
              7,
              8,
              9
            ],
            "3": [
              7,
              8,
              9
            ],
            "4": [
              7,
              8,
              9
            ],
            "5": [
              7,
              8,
              9
            ],
            "6": [
              7,
              8,
              9
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [
            "observed_marker #16 shares 10x10 cell (1,7) with marker #5 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ],
          "diagnostics": [
            "observed_marker #16 shares 10x10 cell (1,7) with marker #5 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ]
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_cafe_interior.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l50_main_room": {
        "fp_id": "fp_l50_main_room",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l50_main_room",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 4,
              "col": 1,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 1,
              "col": 0,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 7,
              "col": 1,
              "kind": "base_structural_unit"
            },
            {
              "number": 4,
              "row": 4,
              "col": 6,
              "kind": "base_structural_unit"
            },
            {
              "number": 5,
              "row": 4,
              "col": 7,
              "kind": "base_structural_unit"
            },
            {
              "number": 6,
              "row": 4,
              "col": 9,
              "kind": "base_opening"
            },
            {
              "number": 7,
              "row": 8,
              "col": 5,
              "kind": "base_opening"
            },
            {
              "number": 12,
              "row": 0,
              "col": 4,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 13,
              "row": 1,
              "col": 6,
              "kind": "base_persistent_furniture"
            }
          ],
          "missing_markers": [
            8,
            9,
            10,
            11
          ],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [],
          "cell_collision_diagnostics": [],
          "provider_name": "litellm_gpt55_vision_v1"
        },
        "geometry": {
          "fp_id": "fp_l50_main_room",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              4,
              1
            ],
            "2": [
              1,
              0
            ],
            "3": [
              7,
              1
            ],
            "4": [
              4,
              6
            ],
            "5": [
              4,
              7
            ],
            "6": [
              4,
              9
            ],
            "7": [
              8,
              5
            ],
            "12": [
              0,
              4
            ],
            "13": [
              1,
              6
            ]
          },
          "unit_marker_cells": {
            "1": [
              4,
              1
            ],
            "2": [
              1,
              0
            ],
            "3": [
              7,
              1
            ],
            "4": [
              4,
              6
            ],
            "5": [
              4,
              7
            ]
          },
          "opening_marker_cells": {
            "6": [
              4,
              9
            ],
            "7": [
              8,
              5
            ]
          },
          "fixture_marker_cells": {
            "12": [
              0,
              4
            ]
          },
          "furniture_marker_cells": {
            "13": [
              1,
              6
            ]
          },
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                4,
                1
              ]
            ],
            "2": [
              [
                1,
                0
              ]
            ],
            "3": [
              [
                7,
                1
              ]
            ],
            "4": [
              [
                4,
                6
              ]
            ],
            "5": [
              [
                4,
                7
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                0,
                4
              ],
              [
                1,
                6
              ],
              [
                4,
                9
              ],
              [
                8,
                5
              ]
            ],
            "2": [
              [
                0,
                4
              ],
              [
                1,
                6
              ],
              [
                4,
                9
              ],
              [
                8,
                5
              ]
            ],
            "3": [
              [
                0,
                4
              ],
              [
                1,
                6
              ],
              [
                4,
                9
              ],
              [
                8,
                5
              ]
            ],
            "4": [
              [
                0,
                4
              ],
              [
                1,
                6
              ],
              [
                4,
                9
              ],
              [
                8,
                5
              ]
            ],
            "5": [
              [
                0,
                4
              ],
              [
                1,
                6
              ],
              [
                4,
                9
              ],
              [
                8,
                5
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                1
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                0
              ],
              "dx": -1,
              "dy": -3,
              "length_l1": 4
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                1
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                1
              ],
              "dx": 0,
              "dy": 3,
              "length_l1": 3
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                1
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                4,
                6
              ],
              "dx": 5,
              "dy": 0,
              "length_l1": 5
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                1
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                4,
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              ],
              "dx": 6,
              "dy": 0,
              "length_l1": 6
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                0
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
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              ],
              "dx": 1,
              "dy": 3,
              "length_l1": 4
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
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              ],
              "look_at_unit": 3,
              "look_at_cell": [
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              ],
              "dx": 1,
              "dy": 6,
              "length_l1": 7
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                0
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                4,
                6
              ],
              "dx": 6,
              "dy": 3,
              "length_l1": 9
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                0
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                4,
                7
              ],
              "dx": 7,
              "dy": 3,
              "length_l1": 10
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                1
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                1
              ],
              "dx": 0,
              "dy": -3,
              "length_l1": 3
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                1
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                0
              ],
              "dx": -1,
              "dy": -6,
              "length_l1": 7
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                1
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                4,
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              ],
              "dx": 5,
              "dy": -3,
              "length_l1": 8
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
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              ],
              "look_at_unit": 5,
              "look_at_cell": [
                4,
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              ],
              "dx": 6,
              "dy": -3,
              "length_l1": 9
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                4,
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              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
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              ],
              "dx": -5,
              "dy": 0,
              "length_l1": 5
            },
            {
              "camera_unit": 4,
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                4,
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              "look_at_unit": 2,
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              ],
              "dx": -6,
              "dy": -3,
              "length_l1": 9
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                4,
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              ],
              "look_at_unit": 3,
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              ],
              "dx": -5,
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              "length_l1": 8
            },
            {
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                4,
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              ],
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            },
            {
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              "look_at_unit": 1,
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                4,
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              ],
              "dx": -6,
              "dy": 0,
              "length_l1": 6
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                4,
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              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
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              ],
              "dx": -7,
              "dy": -3,
              "length_l1": 10
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                4,
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              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
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              ],
              "dx": -6,
              "dy": 3,
              "length_l1": 9
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                4,
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              ],
              "look_at_unit": 4,
              "look_at_cell": [
                4,
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              ],
              "dx": -1,
              "dy": 0,
              "length_l1": 1
            }
          ],
          "view_cone_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                1
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
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              ],
              "dx": -1,
              "dy": -3,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                1
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                0
              ],
              "dx": -1,
              "dy": -3,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                1
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
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              ],
              "dx": -1,
              "dy": -3,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
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              "camera_cell": [
                4,
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              ],
              "look_at_unit": 3,
              "look_at_cell": [
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              "dx": 0,
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            },
            {
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              ],
              "look_at_unit": 3,
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            },
            {
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            },
            {
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              "look_at_unit": 4,
              "look_at_cell": [
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              ],
              "dx": 5,
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            },
            {
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              ],
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              ],
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            },
            {
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              ],
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              ],
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            },
            {
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              ],
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            },
            {
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              ],
              "dx": 6,
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              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                1
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                4,
                7
              ],
              "dx": 6,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
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              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                1
              ],
              "dx": 1,
              "dy": 3,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                0
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
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              ],
              "dx": 1,
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              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
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              ],
              "look_at_unit": 1,
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              ],
              "dx": 1,
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            },
            {
              "camera_unit": 2,
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              ],
              "look_at_unit": 3,
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              ],
              "dx": 1,
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            },
            {
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              "look_at_unit": 3,
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              ],
              "dx": 1,
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              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
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              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
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              ],
              "dx": 1,
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              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
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              ],
              "look_at_unit": 4,
              "look_at_cell": [
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              ],
              "dx": 6,
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              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
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              ],
              "look_at_unit": 4,
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              ],
              "dx": 6,
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              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
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              ],
              "look_at_unit": 4,
              "look_at_cell": [
                4,
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              ],
              "dx": 6,
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              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
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              ],
              "look_at_unit": 5,
              "look_at_cell": [
                4,
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              ],
              "dx": 7,
              "dy": 3,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
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              ],
              "look_at_unit": 5,
              "look_at_cell": [
                4,
                7
              ],
              "dx": 7,
              "dy": 3,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
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              ],
              "look_at_unit": 5,
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              "dx": 7,
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            },
            {
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              "look_at_unit": 1,
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              "dx": 0,
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            },
            {
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              "look_at_unit": 1,
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              "dx": 0,
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            },
            {
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            },
            {
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              "look_at_unit": 2,
              "look_at_cell": [
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              "dx": -1,
              "dy": -6,
              "lens_enum": "wide",
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            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                1
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                0
              ],
              "dx": -1,
              "dy": -6,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                1
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                0
              ],
              "dx": -1,
              "dy": -6,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                1
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                4,
                6
              ],
              "dx": 5,
              "dy": -3,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                1
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                4,
                6
              ],
              "dx": 5,
              "dy": -3,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                1
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                4,
                6
              ],
              "dx": 5,
              "dy": -3,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                1
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                4,
                7
              ],
              "dx": 6,
              "dy": -3,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                1
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                4,
                7
              ],
              "dx": 6,
              "dy": -3,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                1
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                4,
                7
              ],
              "dx": 6,
              "dy": -3,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                4,
                6
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                1
              ],
              "dx": -5,
              "dy": 0,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                4,
                6
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                1
              ],
              "dx": -5,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                4,
                6
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                1
              ],
              "dx": -5,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                4,
                6
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                0
              ],
              "dx": -6,
              "dy": -3,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                4,
                6
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                0
              ],
              "dx": -6,
              "dy": -3,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                4,
                6
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                0
              ],
              "dx": -6,
              "dy": -3,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                4,
                6
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                1
              ],
              "dx": -5,
              "dy": 3,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                4,
                6
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                1
              ],
              "dx": -5,
              "dy": 3,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                4,
                6
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                1
              ],
              "dx": -5,
              "dy": 3,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                4,
                6
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                4,
                7
              ],
              "dx": 1,
              "dy": 0,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                4,
                6
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                4,
                7
              ],
              "dx": 1,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                4,
                6
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                4,
                7
              ],
              "dx": 1,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                4,
                7
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                1
              ],
              "dx": -6,
              "dy": 0,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                4,
                7
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                1
              ],
              "dx": -6,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                4,
                7
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                1
              ],
              "dx": -6,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                4,
                7
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                0
              ],
              "dx": -7,
              "dy": -3,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                4,
                7
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                0
              ],
              "dx": -7,
              "dy": -3,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                4,
                7
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                0
              ],
              "dx": -7,
              "dy": -3,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                4,
                7
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                1
              ],
              "dx": -6,
              "dy": 3,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                4,
                7
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                1
              ],
              "dx": -6,
              "dy": 3,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                4,
                7
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                1
              ],
              "dx": -6,
              "dy": 3,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                4,
                7
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                4,
                6
              ],
              "dx": -1,
              "dy": 0,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                4,
                7
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                4,
                6
              ],
              "dx": -1,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                4,
                7
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                4,
                6
              ],
              "dx": -1,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
              2,
              3,
              4,
              5
            ],
            "2": [
              1,
              3,
              4,
              5
            ],
            "3": [
              1,
              2,
              4,
              5
            ],
            "4": [
              1,
              2,
              3,
              5
            ],
            "5": [
              1,
              2,
              3,
              4
            ]
          },
          "visible_openings_candidates": {
            "1": [
              6,
              7
            ],
            "2": [
              6,
              7
            ],
            "3": [
              6,
              7
            ],
            "4": [
              6,
              7
            ],
            "5": [
              6,
              7
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [],
          "diagnostics": []
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_l50_main_room.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_cocktail_bar_main": {
        "fp_id": "fp_cocktail_bar_main",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_cocktail_bar_main",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 4,
              "col": 3,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 4,
              "col": 6,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 8,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 4,
              "row": 0,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 5,
              "row": 4,
              "col": 5,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 6,
              "row": 5,
              "col": 4,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 7,
              "row": 4,
              "col": 7,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 8,
              "row": 3,
              "col": 6,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 9,
              "row": 4,
              "col": 6,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 10,
              "row": 6,
              "col": 6,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 11,
              "row": 8,
              "col": 6,
              "kind": "base_opening"
            },
            {
              "number": 12,
              "row": 9,
              "col": 3,
              "kind": "base_opening"
            },
            {
              "number": 13,
              "row": 4,
              "col": 2,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 14,
              "row": 2,
              "col": 3,
              "kind": "base_persistent_furniture"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [
            "observed_markers[8] cell (4,6) shares a 10x10 cell with marker #2 (W20E6-A: surfaced as diagnostic, not a hard blocker -- distinct marker numbers may genuinely occupy the same coarse cell)"
          ],
          "cell_collision_diagnostics": [
            "observed_markers[8] cell (4,6) shares a 10x10 cell with marker #2 (W20E6-A: surfaced as diagnostic, not a hard blocker -- distinct marker numbers may genuinely occupy the same coarse cell)"
          ],
          "provider_name": "litellm_gpt55_vision_v1"
        },
        "geometry": {
          "fp_id": "fp_cocktail_bar_main",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              4,
              3
            ],
            "2": [
              4,
              6
            ],
            "3": [
              8,
              5
            ],
            "4": [
              0,
              4
            ],
            "5": [
              4,
              5
            ],
            "6": [
              5,
              4
            ],
            "7": [
              4,
              7
            ],
            "8": [
              3,
              6
            ],
            "9": [
              4,
              6
            ],
            "10": [
              6,
              6
            ],
            "11": [
              8,
              6
            ],
            "12": [
              9,
              3
            ],
            "13": [
              4,
              2
            ],
            "14": [
              2,
              3
            ]
          },
          "unit_marker_cells": {
            "1": [
              4,
              3
            ],
            "2": [
              4,
              6
            ],
            "3": [
              8,
              5
            ],
            "4": [
              0,
              4
            ]
          },
          "opening_marker_cells": {
            "11": [
              8,
              6
            ],
            "12": [
              9,
              3
            ]
          },
          "fixture_marker_cells": {
            "7": [
              4,
              7
            ],
            "8": [
              3,
              6
            ],
            "9": [
              4,
              6
            ],
            "10": [
              6,
              6
            ]
          },
          "furniture_marker_cells": {
            "5": [
              4,
              5
            ],
            "6": [
              5,
              4
            ],
            "13": [
              4,
              2
            ],
            "14": [
              2,
              3
            ]
          },
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                4,
                3
              ]
            ],
            "2": [
              [
                4,
                6
              ]
            ],
            "3": [
              [
                8,
                5
              ]
            ],
            "4": [
              [
                0,
                4
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                2,
                3
              ],
              [
                3,
                6
              ],
              [
                4,
                2
              ],
              [
                4,
                5
              ],
              [
                4,
                6
              ],
              [
                4,
                7
              ],
              [
                5,
                4
              ],
              [
                6,
                6
              ],
              [
                8,
                6
              ],
              [
                9,
                3
              ]
            ],
            "2": [
              [
                2,
                3
              ],
              [
                3,
                6
              ],
              [
                4,
                2
              ],
              [
                4,
                5
              ],
              [
                4,
                6
              ],
              [
                4,
                7
              ],
              [
                5,
                4
              ],
              [
                6,
                6
              ],
              [
                8,
                6
              ],
              [
                9,
                3
              ]
            ],
            "3": [
              [
                2,
                3
              ],
              [
                3,
                6
              ],
              [
                4,
                2
              ],
              [
                4,
                5
              ],
              [
                4,
                6
              ],
              [
                4,
                7
              ],
              [
                5,
                4
              ],
              [
                6,
                6
              ],
              [
                8,
                6
              ],
              [
                9,
                3
              ]
            ],
            "4": [
              [
                2,
                3
              ],
              [
                3,
                6
              ],
              [
                4,
                2
              ],
              [
                4,
                5
              ],
              [
                4,
                6
              ],
              [
                4,
                7
              ],
              [
                5,
                4
              ],
              [
                6,
                6
              ],
              [
                8,
                6
              ],
              [
                9,
                3
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                3
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                4,
                6
              ],
              "dx": 3,
              "dy": 0,
              "length_l1": 3
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                3
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                5
              ],
              "dx": 2,
              "dy": 4,
              "length_l1": 6
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                3
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                0,
                4
              ],
              "dx": 1,
              "dy": -4,
              "length_l1": 5
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                4,
                6
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                3
              ],
              "dx": -3,
              "dy": 0,
              "length_l1": 3
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                4,
                6
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                5
              ],
              "dx": -1,
              "dy": 4,
              "length_l1": 5
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                4,
                6
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                0,
                4
              ],
              "dx": -2,
              "dy": -4,
              "length_l1": 6
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                3
              ],
              "dx": -2,
              "dy": -4,
              "length_l1": 6
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                4,
                6
              ],
              "dx": 1,
              "dy": -4,
              "length_l1": 5
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                0,
                4
              ],
              "dx": -1,
              "dy": -8,
              "length_l1": 9
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                3
              ],
              "dx": -1,
              "dy": 4,
              "length_l1": 5
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                4,
                6
              ],
              "dx": 2,
              "dy": 4,
              "length_l1": 6
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                5
              ],
              "dx": 1,
              "dy": 8,
              "length_l1": 9
            }
          ],
          "view_cone_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                3
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                4,
                6
              ],
              "dx": 3,
              "dy": 0,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                3
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                4,
                6
              ],
              "dx": 3,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                3
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                4,
                6
              ],
              "dx": 3,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                3
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                5
              ],
              "dx": 2,
              "dy": 4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                3
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                5
              ],
              "dx": 2,
              "dy": 4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                3
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                5
              ],
              "dx": 2,
              "dy": 4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                3
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                0,
                4
              ],
              "dx": 1,
              "dy": -4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                3
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                0,
                4
              ],
              "dx": 1,
              "dy": -4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                4,
                3
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                0,
                4
              ],
              "dx": 1,
              "dy": -4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                4,
                6
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                3
              ],
              "dx": -3,
              "dy": 0,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                4,
                6
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                3
              ],
              "dx": -3,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                4,
                6
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                3
              ],
              "dx": -3,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                4,
                6
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                5
              ],
              "dx": -1,
              "dy": 4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                4,
                6
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                5
              ],
              "dx": -1,
              "dy": 4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                4,
                6
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                5
              ],
              "dx": -1,
              "dy": 4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                4,
                6
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                0,
                4
              ],
              "dx": -2,
              "dy": -4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                4,
                6
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                0,
                4
              ],
              "dx": -2,
              "dy": -4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                4,
                6
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                0,
                4
              ],
              "dx": -2,
              "dy": -4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                3
              ],
              "dx": -2,
              "dy": -4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                3
              ],
              "dx": -2,
              "dy": -4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                3
              ],
              "dx": -2,
              "dy": -4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                4,
                6
              ],
              "dx": 1,
              "dy": -4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                4,
                6
              ],
              "dx": 1,
              "dy": -4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                4,
                6
              ],
              "dx": 1,
              "dy": -4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                0,
                4
              ],
              "dx": -1,
              "dy": -8,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                0,
                4
              ],
              "dx": -1,
              "dy": -8,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                0,
                4
              ],
              "dx": -1,
              "dy": -8,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                3
              ],
              "dx": -1,
              "dy": 4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                3
              ],
              "dx": -1,
              "dy": 4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                4,
                3
              ],
              "dx": -1,
              "dy": 4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                4,
                6
              ],
              "dx": 2,
              "dy": 4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                4,
                6
              ],
              "dx": 2,
              "dy": 4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                4,
                6
              ],
              "dx": 2,
              "dy": 4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                5
              ],
              "dx": 1,
              "dy": 8,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                5
              ],
              "dx": 1,
              "dy": 8,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                5
              ],
              "dx": 1,
              "dy": 8,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
              2,
              3,
              4
            ],
            "2": [
              1,
              3,
              4
            ],
            "3": [
              1,
              2,
              4
            ],
            "4": [
              1,
              2,
              3
            ]
          },
          "visible_openings_candidates": {
            "1": [
              11,
              12
            ],
            "2": [
              11,
              12
            ],
            "3": [
              11,
              12
            ],
            "4": [
              11,
              12
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [
            "observed_marker #9 shares 10x10 cell (4,6) with marker #2 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ],
          "diagnostics": [
            "observed_marker #9 shares 10x10 cell (4,6) with marker #2 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ]
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_cocktail_bar_main.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_courthouse_forecourt": {
        "fp_id": "fp_courthouse_forecourt",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_courthouse_forecourt",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 1,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 2,
              "col": 4,
              "kind": "base_opening"
            },
            {
              "number": 3,
              "row": 3,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 4,
              "row": 3,
              "col": 4,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 5,
              "row": 3,
              "col": 7,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 6,
              "row": 5,
              "col": 2,
              "kind": "base_structural_unit"
            },
            {
              "number": 7,
              "row": 6,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 8,
              "row": 8,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 9,
              "row": 2,
              "col": 7,
              "kind": "base_opening"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [
            "observed_markers[3] cell (3,4) shares a 10x10 cell with marker #3 (W20E6-A: surfaced as diagnostic, not a hard blocker -- distinct marker numbers may genuinely occupy the same coarse cell)"
          ],
          "cell_collision_diagnostics": [
            "observed_markers[3] cell (3,4) shares a 10x10 cell with marker #3 (W20E6-A: surfaced as diagnostic, not a hard blocker -- distinct marker numbers may genuinely occupy the same coarse cell)"
          ],
          "provider_name": "litellm_gpt55_vision_v1"
        },
        "geometry": {
          "fp_id": "fp_courthouse_forecourt",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              1,
              4
            ],
            "2": [
              2,
              4
            ],
            "3": [
              3,
              4
            ],
            "4": [
              3,
              4
            ],
            "5": [
              3,
              7
            ],
            "6": [
              5,
              2
            ],
            "7": [
              6,
              4
            ],
            "8": [
              8,
              4
            ],
            "9": [
              2,
              7
            ]
          },
          "unit_marker_cells": {
            "1": [
              1,
              4
            ],
            "3": [
              3,
              4
            ],
            "6": [
              5,
              2
            ],
            "7": [
              6,
              4
            ],
            "8": [
              8,
              4
            ]
          },
          "opening_marker_cells": {
            "2": [
              2,
              4
            ],
            "9": [
              2,
              7
            ]
          },
          "fixture_marker_cells": {
            "4": [
              3,
              4
            ],
            "5": [
              3,
              7
            ]
          },
          "furniture_marker_cells": {},
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                1,
                4
              ]
            ],
            "3": [
              [
                3,
                4
              ]
            ],
            "6": [
              [
                5,
                2
              ]
            ],
            "7": [
              [
                6,
                4
              ]
            ],
            "8": [
              [
                8,
                4
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                2,
                4
              ],
              [
                2,
                7
              ],
              [
                3,
                4
              ],
              [
                3,
                7
              ]
            ],
            "3": [
              [
                2,
                4
              ],
              [
                2,
                7
              ],
              [
                3,
                4
              ],
              [
                3,
                7
              ]
            ],
            "6": [
              [
                2,
                4
              ],
              [
                2,
                7
              ],
              [
                3,
                4
              ],
              [
                3,
                7
              ]
            ],
            "7": [
              [
                2,
                4
              ],
              [
                2,
                7
              ],
              [
                3,
                4
              ],
              [
                3,
                7
              ]
            ],
            "8": [
              [
                2,
                4
              ],
              [
                2,
                7
              ],
              [
                3,
                4
              ],
              [
                3,
                7
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                4
              ],
              "dx": 0,
              "dy": 2,
              "length_l1": 2
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 6,
              "look_at_cell": [
                5,
                2
              ],
              "dx": -2,
              "dy": 4,
              "length_l1": 6
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 7,
              "look_at_cell": [
                6,
                4
              ],
              "dx": 0,
              "dy": 5,
              "length_l1": 5
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 8,
              "look_at_cell": [
                8,
                4
              ],
              "dx": 0,
              "dy": 7,
              "length_l1": 7
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                1,
                4
              ],
              "dx": 0,
              "dy": -2,
              "length_l1": 2
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                4
              ],
              "look_at_unit": 6,
              "look_at_cell": [
                5,
                2
              ],
              "dx": -2,
              "dy": 2,
              "length_l1": 4
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                4
              ],
              "look_at_unit": 7,
              "look_at_cell": [
                6,
                4
              ],
              "dx": 0,
              "dy": 3,
              "length_l1": 3
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                4
              ],
              "look_at_unit": 8,
              "look_at_cell": [
                8,
                4
              ],
              "dx": 0,
              "dy": 5,
              "length_l1": 5
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                5,
                2
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                1,
                4
              ],
              "dx": 2,
              "dy": -4,
              "length_l1": 6
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                5,
                2
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                4
              ],
              "dx": 2,
              "dy": -2,
              "length_l1": 4
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                5,
                2
              ],
              "look_at_unit": 7,
              "look_at_cell": [
                6,
                4
              ],
              "dx": 2,
              "dy": 1,
              "length_l1": 3
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                5,
                2
              ],
              "look_at_unit": 8,
              "look_at_cell": [
                8,
                4
              ],
              "dx": 2,
              "dy": 3,
              "length_l1": 5
            },
            {
              "camera_unit": 7,
              "camera_cell": [
                6,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                1,
                4
              ],
              "dx": 0,
              "dy": -5,
              "length_l1": 5
            },
            {
              "camera_unit": 7,
              "camera_cell": [
                6,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                4
              ],
              "dx": 0,
              "dy": -3,
              "length_l1": 3
            },
            {
              "camera_unit": 7,
              "camera_cell": [
                6,
                4
              ],
              "look_at_unit": 6,
              "look_at_cell": [
                5,
                2
              ],
              "dx": -2,
              "dy": -1,
              "length_l1": 3
            },
            {
              "camera_unit": 7,
              "camera_cell": [
                6,
                4
              ],
              "look_at_unit": 8,
              "look_at_cell": [
                8,
                4
              ],
              "dx": 0,
              "dy": 2,
              "length_l1": 2
            },
            {
              "camera_unit": 8,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                1,
                4
              ],
              "dx": 0,
              "dy": -7,
              "length_l1": 7
            },
            {
              "camera_unit": 8,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                4
              ],
              "dx": 0,
              "dy": -5,
              "length_l1": 5
            },
            {
              "camera_unit": 8,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 6,
              "look_at_cell": [
                5,
                2
              ],
              "dx": -2,
              "dy": -3,
              "length_l1": 5
            },
            {
              "camera_unit": 8,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 7,
              "look_at_cell": [
                6,
                4
              ],
              "dx": 0,
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            {
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            {
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            {
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            {
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            {
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            },
            {
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            {
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                3,
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            },
            {
              "camera_unit": 8,
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                8,
                4
              ],
              "look_at_unit": 6,
              "look_at_cell": [
                5,
                2
              ],
              "dx": -2,
              "dy": -3,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 8,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 6,
              "look_at_cell": [
                5,
                2
              ],
              "dx": -2,
              "dy": -3,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 8,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 6,
              "look_at_cell": [
                5,
                2
              ],
              "dx": -2,
              "dy": -3,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 8,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 7,
              "look_at_cell": [
                6,
                4
              ],
              "dx": 0,
              "dy": -2,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 8,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 7,
              "look_at_cell": [
                6,
                4
              ],
              "dx": 0,
              "dy": -2,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 8,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 7,
              "look_at_cell": [
                6,
                4
              ],
              "dx": 0,
              "dy": -2,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
              3,
              6,
              7,
              8
            ],
            "3": [
              1,
              6,
              7,
              8
            ],
            "6": [
              1,
              3,
              7,
              8
            ],
            "7": [
              1,
              3,
              6,
              8
            ],
            "8": [
              1,
              3,
              6,
              7
            ]
          },
          "visible_openings_candidates": {
            "1": [
              2,
              9
            ],
            "3": [
              2,
              9
            ],
            "6": [
              2,
              9
            ],
            "7": [
              2,
              9
            ],
            "8": [
              2,
              9
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [
            "observed_marker #4 shares 10x10 cell (3,4) with marker #3 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ],
          "diagnostics": [
            "observed_marker #4 shares 10x10 cell (3,4) with marker #3 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ]
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_courthouse_forecourt.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_courtroom": {
        "fp_id": "fp_courtroom",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_courtroom",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 0,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 1,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 2,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 4,
              "row": 2,
              "col": 7,
              "kind": "base_structural_unit"
            },
            {
              "number": 5,
              "row": 1,
              "col": 9,
              "kind": "base_structural_unit"
            },
            {
              "number": 6,
              "row": 1,
              "col": 1,
              "kind": "base_structural_unit"
            },
            {
              "number": 7,
              "row": 0,
              "col": 1,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 8,
              "row": 4,
              "col": 2,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 9,
              "row": 4,
              "col": 7,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 10,
              "row": 4,
              "col": 8,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 11,
              "row": 3,
              "col": 0,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 12,
              "row": 4,
              "col": 0,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 13,
              "row": 3,
              "col": 9,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 14,
              "row": 4,
              "col": 9,
              "kind": "base_persistent_furniture"
            },
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              "row": 5,
              "col": 2,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 16,
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              "col": 7,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 17,
              "row": 6,
              "col": 5,
              "kind": "base_opening"
            },
            {
              "number": 18,
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            {
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            {
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          "confidence": 0.99,
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          "provider_name": "litellm_gpt55_vision_v1"
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        "geometry": {
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              "fov_deg": 90
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                1,
                1
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                1,
                9
              ],
              "dx": 8,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                1,
                1
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                1,
                9
              ],
              "dx": 8,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
              2,
              3,
              4,
              5,
              6
            ],
            "2": [
              1,
              3,
              4,
              5,
              6
            ],
            "3": [
              1,
              2,
              4,
              5,
              6
            ],
            "4": [
              1,
              2,
              3,
              5,
              6
            ],
            "5": [
              1,
              2,
              3,
              4,
              6
            ],
            "6": [
              1,
              2,
              3,
              4,
              5
            ]
          },
          "visible_openings_candidates": {
            "1": [
              17,
              18,
              19,
              20
            ],
            "2": [
              17,
              18,
              19,
              20
            ],
            "3": [
              17,
              18,
              19,
              20
            ],
            "4": [
              17,
              18,
              19,
              20
            ],
            "5": [
              17,
              18,
              19,
              20
            ],
            "6": [
              17,
              18,
              19,
              20
            ]
          },
          "wall_door_invalidation_diagnostics": [
            "readback does not encode wall segment polylines; wall/door line-of-sight invalidation cannot be performed at this layer.",
            "opening-to-unit adjacency cannot be derived from cell positions alone; consumer must treat visible_units_candidates and visible_openings_candidates as supersets, not committed sets."
          ],
          "cell_collision_diagnostics": [
            "observed_marker #21 shares 10x10 cell (9,5) with marker #18 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ],
          "diagnostics": [
            "observed_marker #21 shares 10x10 cell (9,5) with marker #18 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ]
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_courtroom.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l61_conference_hall": {
        "fp_id": "fp_l61_conference_hall",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l61_conference_hall",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 0,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 1,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 1,
              "col": 7,
              "kind": "base_opening"
            },
            {
              "number": 4,
              "row": 2,
              "col": 4,
              "kind": "base_opening"
            },
            {
              "number": 5,
              "row": 8,
              "col": 7,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 6,
              "row": 5,
              "col": 4,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 7,
              "row": 4,
              "col": 1,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 8,
              "row": 4,
              "col": 8,
              "kind": "base_structural_unit"
            },
            {
              "number": 9,
              "row": 7,
              "col": 8,
              "kind": "base_structural_unit"
            },
            {
              "number": 10,
              "row": 9,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 11,
              "row": 9,
              "col": 4,
              "kind": "base_structural_unit"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [
            "observed_markers[10] cell (9,4) shares a 10x10 cell with marker #10 (W20E6-A: surfaced as diagnostic, not a hard blocker -- distinct marker numbers may genuinely occupy the same coarse cell)"
          ],
          "cell_collision_diagnostics": [
            "observed_markers[10] cell (9,4) shares a 10x10 cell with marker #10 (W20E6-A: surfaced as diagnostic, not a hard blocker -- distinct marker numbers may genuinely occupy the same coarse cell)"
          ],
          "provider_name": "litellm_gpt55_vision_v1"
        },
        "geometry": {
          "fp_id": "fp_l61_conference_hall",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              0,
              4
            ],
            "2": [
              1,
              4
            ],
            "3": [
              1,
              7
            ],
            "4": [
              2,
              4
            ],
            "5": [
              8,
              7
            ],
            "6": [
              5,
              4
            ],
            "7": [
              4,
              1
            ],
            "8": [
              4,
              8
            ],
            "9": [
              7,
              8
            ],
            "10": [
              9,
              4
            ],
            "11": [
              9,
              4
            ]
          },
          "unit_marker_cells": {
            "1": [
              0,
              4
            ],
            "2": [
              1,
              4
            ],
            "8": [
              4,
              8
            ],
            "9": [
              7,
              8
            ],
            "10": [
              9,
              4
            ],
            "11": [
              9,
              4
            ]
          },
          "opening_marker_cells": {
            "3": [
              1,
              7
            ],
            "4": [
              2,
              4
            ]
          },
          "fixture_marker_cells": {},
          "furniture_marker_cells": {
            "5": [
              8,
              7
            ],
            "6": [
              5,
              4
            ],
            "7": [
              4,
              1
            ]
          },
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                0,
                4
              ]
            ],
            "2": [
              [
                1,
                4
              ]
            ],
            "8": [
              [
                4,
                8
              ]
            ],
            "9": [
              [
                7,
                8
              ]
            ],
            "10": [
              [
                9,
                4
              ]
            ],
            "11": [
              [
                9,
                4
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                1,
                7
              ],
              [
                2,
                4
              ],
              [
                4,
                1
              ],
              [
                5,
                4
              ],
              [
                8,
                7
              ]
            ],
            "2": [
              [
                1,
                7
              ],
              [
                2,
                4
              ],
              [
                4,
                1
              ],
              [
                5,
                4
              ],
              [
                8,
                7
              ]
            ],
            "8": [
              [
                1,
                7
              ],
              [
                2,
                4
              ],
              [
                4,
                1
              ],
              [
                5,
                4
              ],
              [
                8,
                7
              ]
            ],
            "9": [
              [
                1,
                7
              ],
              [
                2,
                4
              ],
              [
                4,
                1
              ],
              [
                5,
                4
              ],
              [
                8,
                7
              ]
            ],
            "10": [
              [
                1,
                7
              ],
              [
                2,
                4
              ],
              [
                4,
                1
              ],
              [
                5,
                4
              ],
              [
                8,
                7
              ]
            ],
            "11": [
              [
                1,
                7
              ],
              [
                2,
                4
              ],
              [
                4,
                1
              ],
              [
                5,
                4
              ],
              [
                8,
                7
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                4
              ],
              "dx": 0,
              "dy": 1,
              "length_l1": 1
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 8,
              "look_at_cell": [
                4,
                8
              ],
              "dx": 4,
              "dy": 4,
              "length_l1": 8
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 9,
              "look_at_cell": [
                7,
                8
              ],
              "dx": 4,
              "dy": 7,
              "length_l1": 11
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 10,
              "look_at_cell": [
                9,
                4
              ],
              "dx": 0,
              "dy": 9,
              "length_l1": 9
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 11,
              "look_at_cell": [
                9,
                4
              ],
              "dx": 0,
              "dy": 9,
              "length_l1": 9
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                0,
                4
              ],
              "dx": 0,
              "dy": -1,
              "length_l1": 1
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 8,
              "look_at_cell": [
                4,
                8
              ],
              "dx": 4,
              "dy": 3,
              "length_l1": 7
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 9,
              "look_at_cell": [
                7,
                8
              ],
              "dx": 4,
              "dy": 6,
              "length_l1": 10
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 10,
              "look_at_cell": [
                9,
                4
              ],
              "dx": 0,
              "dy": 8,
              "length_l1": 8
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 11,
              "look_at_cell": [
                9,
                4
              ],
              "dx": 0,
              "dy": 8,
              "length_l1": 8
            },
            {
              "camera_unit": 8,
              "camera_cell": [
                4,
                8
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                0,
                4
              ],
              "dx": -4,
              "dy": -4,
              "length_l1": 8
            },
            {
              "camera_unit": 8,
              "camera_cell": [
                4,
                8
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                4
              ],
              "dx": -4,
              "dy": -3,
              "length_l1": 7
            },
            {
              "camera_unit": 8,
              "camera_cell": [
                4,
                8
              ],
              "look_at_unit": 9,
              "look_at_cell": [
                7,
                8
              ],
              "dx": 0,
              "dy": 3,
              "length_l1": 3
            },
            {
              "camera_unit": 8,
              "camera_cell": [
                4,
                8
              ],
              "look_at_unit": 10,
              "look_at_cell": [
                9,
                4
              ],
              "dx": -4,
              "dy": 5,
              "length_l1": 9
            },
            {
              "camera_unit": 8,
              "camera_cell": [
                4,
                8
              ],
              "look_at_unit": 11,
              "look_at_cell": [
                9,
                4
              ],
              "dx": -4,
              "dy": 5,
              "length_l1": 9
            },
            {
              "camera_unit": 9,
              "camera_cell": [
                7,
                8
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                0,
                4
              ],
              "dx": -4,
              "dy": -7,
              "length_l1": 11
            },
            {
              "camera_unit": 9,
              "camera_cell": [
                7,
                8
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                4
              ],
              "dx": -4,
              "dy": -6,
              "length_l1": 10
            },
            {
              "camera_unit": 9,
              "camera_cell": [
                7,
                8
              ],
              "look_at_unit": 8,
              "look_at_cell": [
                4,
                8
              ],
              "dx": 0,
              "dy": -3,
              "length_l1": 3
            },
            {
              "camera_unit": 9,
              "camera_cell": [
                7,
                8
              ],
              "look_at_unit": 10,
              "look_at_cell": [
                9,
                4
              ],
              "dx": -4,
              "dy": 2,
              "length_l1": 6
            },
            {
              "camera_unit": 9,
              "camera_cell": [
                7,
                8
              ],
              "look_at_unit": 11,
              "look_at_cell": [
                9,
                4
              ],
              "dx": -4,
              "dy": 2,
              "length_l1": 6
            },
            {
              "camera_unit": 10,
              "camera_cell": [
                9,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                0,
                4
              ],
              "dx": 0,
              "dy": -9,
              "length_l1": 9
            },
            {
              "camera_unit": 10,
              "camera_cell": [
                9,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                4
              ],
              "dx": 0,
              "dy": -8,
              "length_l1": 8
            },
            {
              "camera_unit": 10,
              "camera_cell": [
                9,
                4
              ],
              "look_at_unit": 8,
              "look_at_cell": [
                4,
                8
              ],
              "dx": 4,
              "dy": -5,
              "length_l1": 9
            },
            {
              "camera_unit": 10,
              "camera_cell": [
                9,
                4
              ],
              "look_at_unit": 9,
              "look_at_cell": [
                7,
                8
              ],
              "dx": 4,
              "dy": -2,
              "length_l1": 6
            },
            {
              "camera_unit": 10,
              "camera_cell": [
                9,
                4
              ],
              "look_at_unit": 11,
              "look_at_cell": [
                9,
                4
              ],
              "dx": 0,
              "dy": 0,
              "length_l1": 0
            },
            {
              "camera_unit": 11,
              "camera_cell": [
                9,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                0,
                4
              ],
              "dx": 0,
              "dy": -9,
              "length_l1": 9
            },
            {
              "camera_unit": 11,
              "camera_cell": [
                9,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                4
              ],
              "dx": 0,
              "dy": -8,
              "length_l1": 8
            },
            {
              "camera_unit": 11,
              "camera_cell": [
                9,
                4
              ],
              "look_at_unit": 8,
              "look_at_cell": [
                4,
                8
              ],
              "dx": 4,
              "dy": -5,
              "length_l1": 9
            },
            {
              "camera_unit": 11,
              "camera_cell": [
                9,
                4
              ],
              "look_at_unit": 9,
              "look_at_cell": [
                7,
                8
              ],
              "dx": 4,
              "dy": -2,
              "length_l1": 6
            },
            {
              "camera_unit": 11,
              "camera_cell": [
                9,
                4
              ],
              "look_at_unit": 10,
              "look_at_cell": [
                9,
                4
              ],
              "dx": 0,
              "dy": 0,
              "length_l1": 0
            }
          ],
          "view_cone_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                4
              ],
              "dx": 0,
              "dy": 1,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                4
              ],
              "dx": 0,
              "dy": 1,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                4
              ],
              "dx": 0,
              "dy": 1,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 8,
              "look_at_cell": [
                4,
                8
              ],
              "dx": 4,
              "dy": 4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 8,
              "look_at_cell": [
                4,
                8
              ],
              "dx": 4,
              "dy": 4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 8,
              "look_at_cell": [
                4,
                8
              ],
              "dx": 4,
              "dy": 4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 9,
              "look_at_cell": [
                7,
                8
              ],
              "dx": 4,
              "dy": 7,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 9,
              "look_at_cell": [
                7,
                8
              ],
              "dx": 4,
              "dy": 7,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 9,
              "look_at_cell": [
                7,
                8
              ],
              "dx": 4,
              "dy": 7,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 10,
              "look_at_cell": [
                9,
                4
              ],
              "dx": 0,
              "dy": 9,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 10,
              "look_at_cell": [
                9,
                4
              ],
              "dx": 0,
              "dy": 9,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 10,
              "look_at_cell": [
                9,
                4
              ],
              "dx": 0,
              "dy": 9,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 11,
              "look_at_cell": [
                9,
                4
              ],
              "dx": 0,
              "dy": 9,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 11,
              "look_at_cell": [
                9,
                4
              ],
              "dx": 0,
              "dy": 9,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                0,
                4
              ],
              "look_at_unit": 11,
              "look_at_cell": [
                9,
                4
              ],
              "dx": 0,
              "dy": 9,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                0,
                4
              ],
              "dx": 0,
              "dy": -1,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                0,
                4
              ],
              "dx": 0,
              "dy": -1,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
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          ],
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  "resolved_model": "gpt",
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}