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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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                0
              ],
              "look_at_unit": 3,
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            },
            {
              "camera_unit": 4,
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                5,
                0
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                6,
                5
              ],
              "dx": 5,
              "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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              3
            ]
          },
          "visible_openings_candidates": {
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              7
            ],
            "2": [
              6,
              7
            ],
            "3": [
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              7
            ],
            "4": [
              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_l03_rooftop_deck.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l04_whole_interior": {
        "fp_id": "fp_l04_whole_interior",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l04_whole_interior",
          "grid_size": [
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            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 6,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 7,
              "col": 2,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 1,
              "col": 3,
              "kind": "base_structural_unit"
            },
            {
              "number": 4,
              "row": 1,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 5,
              "row": 6,
              "col": 7,
              "kind": "base_structural_unit"
            },
            {
              "number": 6,
              "row": 8,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 7,
              "row": 3,
              "col": 4,
              "kind": "base_opening"
            },
            {
              "number": 8,
              "row": 6,
              "col": 2,
              "kind": "base_opening"
            },
            {
              "number": 9,
              "row": 5,
              "col": 1,
              "kind": "base_opening"
            },
            {
              "number": 10,
              "row": 4,
              "col": 4,
              "kind": "base_opening"
            },
            {
              "number": 11,
              "row": 4,
              "col": 7,
              "kind": "base_opening"
            },
            {
              "number": 13,
              "row": 7,
              "col": 6,
              "kind": "base_opening"
            },
            {
              "number": 14,
              "row": 7,
              "col": 4,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 15,
              "row": 6,
              "col": 7,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 16,
              "row": 5,
              "col": 7,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 17,
              "row": 6,
              "col": 8,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 18,
              "row": 7,
              "col": 7,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 19,
              "row": 7,
              "col": 7,
              "kind": "base_persistent_fixture"
            }
          ],
          "missing_markers": [
            12,
            20,
            21,
            22,
            23,
            24,
            25,
            26,
            27,
            28
          ],
          "extra_markers": [],
          "confidence": 0.98,
          "diagnostics": [
            "Marker numbers 5 and 6 each appear twice; reported coordinates use the bathroom and entry-threshold instances, respectively.",
            "observed_markers[13] cell (6,7) 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)",
            "observed_markers[17] cell (7,7) shares a 10x10 cell with marker #18 (W20E6-A: surfaced as diagnostic, not a hard blocker -- distinct marker numbers may genuinely occupy the same coarse cell)"
          ],
          "cell_collision_diagnostics": [
            "observed_markers[13] cell (6,7) 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)",
            "observed_markers[17] cell (7,7) shares a 10x10 cell with marker #18 (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_l04_whole_interior",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              6,
              4
            ],
            "2": [
              7,
              2
            ],
            "3": [
              1,
              3
            ],
            "4": [
              1,
              5
            ],
            "5": [
              6,
              7
            ],
            "6": [
              8,
              4
            ],
            "7": [
              3,
              4
            ],
            "8": [
              6,
              2
            ],
            "9": [
              5,
              1
            ],
            "10": [
              4,
              4
            ],
            "11": [
              4,
              7
            ],
            "13": [
              7,
              6
            ],
            "14": [
              7,
              4
            ],
            "15": [
              6,
              7
            ],
            "16": [
              5,
              7
            ],
            "17": [
              6,
              8
            ],
            "18": [
              7,
              7
            ],
            "19": [
              7,
              7
            ]
          },
          "unit_marker_cells": {
            "1": [
              6,
              4
            ],
            "2": [
              7,
              2
            ],
            "3": [
              1,
              3
            ],
            "4": [
              1,
              5
            ],
            "5": [
              6,
              7
            ],
            "6": [
              8,
              4
            ]
          },
          "opening_marker_cells": {
            "7": [
              3,
              4
            ],
            "8": [
              6,
              2
            ],
            "9": [
              5,
              1
            ],
            "10": [
              4,
              4
            ],
            "11": [
              4,
              7
            ],
            "13": [
              7,
              6
            ]
          },
          "fixture_marker_cells": {
            "14": [
              7,
              4
            ],
            "15": [
              6,
              7
            ],
            "16": [
              5,
              7
            ],
            "17": [
              6,
              8
            ],
            "18": [
              7,
              7
            ],
            "19": [
              7,
              7
            ]
          },
          "furniture_marker_cells": {},
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                6,
                4
              ]
            ],
            "2": [
              [
                7,
                2
              ]
            ],
            "3": [
              [
                1,
                3
              ]
            ],
            "4": [
              [
                1,
                5
              ]
            ],
            "5": [
              [
                6,
                7
              ]
            ],
            "6": [
              [
                8,
                4
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                3,
                4
              ],
              [
                4,
                4
              ],
              [
                4,
                7
              ],
              [
                5,
                1
              ],
              [
                5,
                7
              ],
              [
                6,
                2
              ],
              [
                6,
                7
              ],
              [
                6,
                8
              ],
              [
                7,
                4
              ],
              [
                7,
                6
              ],
              [
                7,
                7
              ]
            ],
            "2": [
              [
                3,
                4
              ],
              [
                4,
                4
              ],
              [
                4,
                7
              ],
              [
                5,
                1
              ],
              [
                5,
                7
              ],
              [
                6,
                2
              ],
              [
                6,
                7
              ],
              [
                6,
                8
              ],
              [
                7,
                4
              ],
              [
                7,
                6
              ],
              [
                7,
                7
              ]
            ],
            "3": [
              [
                3,
                4
              ],
              [
                4,
                4
              ],
              [
                4,
                7
              ],
              [
                5,
                1
              ],
              [
                5,
                7
              ],
              [
                6,
                2
              ],
              [
                6,
                7
              ],
              [
                6,
                8
              ],
              [
                7,
                4
              ],
              [
                7,
                6
              ],
              [
                7,
                7
              ]
            ],
            "4": [
              [
                3,
                4
              ],
              [
                4,
                4
              ],
              [
                4,
                7
              ],
              [
                5,
                1
              ],
              [
                5,
                7
              ],
              [
                6,
                2
              ],
              [
                6,
                7
              ],
              [
                6,
                8
              ],
              [
                7,
                4
              ],
              [
                7,
                6
              ],
              [
                7,
                7
              ]
            ],
            "5": [
              [
                3,
                4
              ],
              [
                4,
                4
              ],
              [
                4,
                7
              ],
              [
                5,
                1
              ],
              [
                5,
                7
              ],
              [
                6,
                2
              ],
              [
                6,
                7
              ],
              [
                6,
                8
              ],
              [
                7,
                4
              ],
              [
                7,
                6
              ],
              [
                7,
                7
              ]
            ],
            "6": [
              [
                3,
                4
              ],
              [
                4,
                4
              ],
              [
                4,
                7
              ],
              [
                5,
                1
              ],
              [
                5,
                7
              ],
              [
                6,
                2
              ],
              [
                6,
                7
              ],
              [
                6,
                8
              ],
              [
                7,
                4
              ],
              [
                7,
                6
              ],
              [
                7,
                7
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                6,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                7,
                2
              ],
              "dx": -2,
              "dy": 1,
              "length_l1": 3
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                6,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                1,
                3
              ],
              "dx": -1,
              "dy": -5,
              "length_l1": 6
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                6,
                4
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 1,
              "dy": -5,
              "length_l1": 6
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                6,
                4
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                6,
                7
              ],
              "dx": 3,
              "dy": 0,
              "length_l1": 3
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                6,
                4
              ],
              "look_at_unit": 6,
              "look_at_cell": [
                8,
                4
              ],
              "dx": 0,
              "dy": 2,
              "length_l1": 2
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                7,
                2
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                6,
                4
              ],
              "dx": 2,
              "dy": -1,
              "length_l1": 3
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                7,
                2
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                1,
                3
              ],
              "dx": 1,
              "dy": -6,
              "length_l1": 7
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                7,
                2
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 3,
              "dy": -6,
              "length_l1": 9
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                7,
                2
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                6,
                7
              ],
              "dx": 5,
              "dy": -1,
              "length_l1": 6
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                7,
                2
              ],
              "look_at_unit": 6,
              "look_at_cell": [
                8,
                4
              ],
              "dx": 2,
              "dy": 1,
              "length_l1": 3
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                1,
                3
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                6,
                4
              ],
              "dx": 1,
              "dy": 5,
              "length_l1": 6
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                1,
                3
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                7,
                2
              ],
              "dx": -1,
              "dy": 6,
              "length_l1": 7
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                1,
                3
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 2,
              "dy": 0,
              "length_l1": 2
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                1,
                3
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                6,
                7
              ],
              "dx": 4,
              "dy": 5,
              "length_l1": 9
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                1,
                3
              ],
              "look_at_unit": 6,
              "look_at_cell": [
                8,
                4
              ],
              "dx": 1,
              "dy": 7,
              "length_l1": 8
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                6,
                4
              ],
              "dx": -1,
              "dy": 5,
              "length_l1": 6
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                7,
                2
              ],
              "dx": -3,
              "dy": 6,
              "length_l1": 9
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                1,
                3
              ],
              "dx": -2,
              "dy": 0,
              "length_l1": 2
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                6,
                7
              ],
              "dx": 2,
              "dy": 5,
              "length_l1": 7
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 6,
              "look_at_cell": [
                8,
                4
              ],
              "dx": -1,
              "dy": 7,
              "length_l1": 8
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                6,
                7
              ],
              "look_at_unit": 1,
              "look_at_cell": [
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              ],
              "dx": -3,
              "dy": 0,
              "length_l1": 3
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                6,
                7
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                7,
                2
              ],
              "dx": -5,
              "dy": 1,
              "length_l1": 6
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                6,
                7
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                1,
                3
              ],
              "dx": -4,
              "dy": -5,
              "length_l1": 9
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                6,
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              ],
              "look_at_unit": 4,
              "look_at_cell": [
                1,
                5
              ],
              "dx": -2,
              "dy": -5,
              "length_l1": 7
            },
            {
              "camera_unit": 5,
              "camera_cell": [
                6,
                7
              ],
              "look_at_unit": 6,
              "look_at_cell": [
                8,
                4
              ],
              "dx": -3,
              "dy": 2,
              "length_l1": 5
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
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              ],
              "dx": 0,
              "dy": -2,
              "length_l1": 2
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                7,
                2
              ],
              "dx": -2,
              "dy": -1,
              "length_l1": 3
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                1,
                3
              ],
              "dx": -1,
              "dy": -7,
              "length_l1": 8
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 1,
              "dy": -7,
              "length_l1": 8
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                6,
                7
              ],
              "dx": 3,
              "dy": -2,
              "length_l1": 5
            }
          ],
          "view_cone_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                6,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                7,
                2
              ],
              "dx": -2,
              "dy": 1,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                6,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                7,
                2
              ],
              "dx": -2,
              "dy": 1,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                6,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                7,
                2
              ],
              "dx": -2,
              "dy": 1,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                6,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                1,
                3
              ],
              "dx": -1,
              "dy": -5,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                6,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                1,
                3
              ],
              "dx": -1,
              "dy": -5,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                6,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                1,
                3
              ],
              "dx": -1,
              "dy": -5,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                6,
                4
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 1,
              "dy": -5,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                6,
                4
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 1,
              "dy": -5,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                6,
                4
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 1,
              "dy": -5,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                6,
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              ],
              "look_at_unit": 5,
              "look_at_cell": [
                6,
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              ],
              "dx": 3,
              "dy": 0,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                6,
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              ],
              "look_at_unit": 5,
              "look_at_cell": [
                6,
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              ],
              "dx": 3,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                6,
                4
              ],
              "look_at_unit": 5,
              "look_at_cell": [
                6,
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              ],
              "dx": 3,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                6,
                4
              ],
              "look_at_unit": 6,
              "look_at_cell": [
                8,
                4
              ],
              "dx": 0,
              "dy": 2,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                6,
                4
              ],
              "look_at_unit": 6,
              "look_at_cell": [
                8,
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              ],
              "dx": 0,
              "dy": 2,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                6,
                4
              ],
              "look_at_unit": 6,
              "look_at_cell": [
                8,
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              ],
              "dx": 0,
              "dy": 2,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
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                2
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                6,
                4
              ],
              "dx": 2,
              "dy": -1,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                7,
                2
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                6,
                4
              ],
              "dx": 2,
              "dy": -1,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                7,
                2
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                6,
                4
              ],
              "dx": 2,
              "dy": -1,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                7,
                2
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                1,
                3
              ],
              "dx": 1,
              "dy": -6,
              "lens_enum": "wide",
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              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,
              10,
              11,
              13
            ],
            "2": [
              7,
              8,
              9,
              10,
              11,
              13
            ],
            "3": [
              7,
              8,
              9,
              10,
              11,
              13
            ],
            "4": [
              7,
              8,
              9,
              10,
              11,
              13
            ],
            "5": [
              7,
              8,
              9,
              10,
              11,
              13
            ],
            "6": [
              7,
              8,
              9,
              10,
              11,
              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": [
            "observed_marker #15 shares 10x10 cell (6,7) with marker #5 (W20E6-A: surfaced as diagnostic, not a hard failure)",
            "observed_marker #19 shares 10x10 cell (7,7) with marker #18 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ],
          "diagnostics": [
            "observed_marker #15 shares 10x10 cell (6,7) with marker #5 (W20E6-A: surfaced as diagnostic, not a hard failure)",
            "observed_marker #19 shares 10x10 cell (7,7) with marker #18 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ]
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_l04_whole_interior.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l11_exterior_site": {
        "fp_id": "fp_l11_exterior_site",
        "error": "unexpected: VlmProviderError: validator_failed: observed_markers[17].number=17 duplicated; observed_markers[20].number=19 duplicated",
        "real_vlm_call": true,
        "real_vlm_call_count": 3,
        "readback_attempts": 3
      },
      "fp_l11_exterior_stairs": {
        "fp_id": "fp_l11_exterior_stairs",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l11_exterior_stairs",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 8,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 7,
              "col": 3,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 7,
              "col": 5,
              "kind": "base_opening"
            },
            {
              "number": 4,
              "row": 6,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 5,
              "row": 5,
              "col": 3,
              "kind": "base_opening"
            },
            {
              "number": 6,
              "row": 4,
              "col": 3,
              "kind": "base_structural_unit"
            },
            {
              "number": 7,
              "row": 4,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 8,
              "row": 3,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 9,
              "row": 2,
              "col": 2,
              "kind": "base_opening"
            },
            {
              "number": 10,
              "row": 2,
              "col": 4,
              "kind": "base_opening"
            },
            {
              "number": 11,
              "row": 2,
              "col": 6,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 12,
              "row": 1,
              "col": 4,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 13,
              "row": 0,
              "col": 5,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 14,
              "row": 1,
              "col": 6,
              "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_l11_exterior_stairs",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              8,
              4
            ],
            "2": [
              7,
              3
            ],
            "3": [
              7,
              5
            ],
            "4": [
              6,
              5
            ],
            "5": [
              5,
              3
            ],
            "6": [
              4,
              3
            ],
            "7": [
              4,
              5
            ],
            "8": [
              3,
              5
            ],
            "9": [
              2,
              2
            ],
            "10": [
              2,
              4
            ],
            "11": [
              2,
              6
            ],
            "12": [
              1,
              4
            ],
            "13": [
              0,
              5
            ],
            "14": [
              1,
              6
            ]
          },
          "unit_marker_cells": {
            "1": [
              8,
              4
            ],
            "2": [
              7,
              3
            ],
            "4": [
              6,
              5
            ],
            "6": [
              4,
              3
            ],
            "7": [
              4,
              5
            ],
            "8": [
              3,
              5
            ],
            "14": [
              1,
              6
            ]
          },
          "opening_marker_cells": {
            "3": [
              7,
              5
            ],
            "5": [
              5,
              3
            ],
            "9": [
              2,
              2
            ],
            "10": [
              2,
              4
            ]
          },
          "fixture_marker_cells": {
            "11": [
              2,
              6
            ],
            "12": [
              1,
              4
            ]
          },
          "furniture_marker_cells": {
            "13": [
              0,
              5
            ]
          },
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                8,
                4
              ]
            ],
            "2": [
              [
                7,
                3
              ]
            ],
            "4": [
              [
                6,
                5
              ]
            ],
            "6": [
              [
                4,
                3
              ]
            ],
            "7": [
              [
                4,
                5
              ]
            ],
            "8": [
              [
                3,
                5
              ]
            ],
            "14": [
              [
                1,
                6
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                0,
                5
              ],
              [
                1,
                4
              ],
              [
                2,
                2
              ],
              [
                2,
                4
              ],
              [
                2,
                6
              ],
              [
                5,
                3
              ],
              [
                7,
                5
              ]
            ],
            "2": [
              [
                0,
                5
              ],
              [
                1,
                4
              ],
              [
                2,
                2
              ],
              [
                2,
                4
              ],
              [
                2,
                6
              ],
              [
                5,
                3
              ],
              [
                7,
                5
              ]
            ],
            "4": [
              [
                0,
                5
              ],
              [
                1,
                4
              ],
              [
                2,
                2
              ],
              [
                2,
                4
              ],
              [
                2,
                6
              ],
              [
                5,
                3
              ],
              [
                7,
                5
              ]
            ],
            "6": [
              [
                0,
                5
              ],
              [
                1,
                4
              ],
              [
                2,
                2
              ],
              [
                2,
                4
              ],
              [
                2,
                6
              ],
              [
                5,
                3
              ],
              [
                7,
                5
              ]
            ],
            "7": [
              [
                0,
                5
              ],
              [
                1,
                4
              ],
              [
                2,
                2
              ],
              [
                2,
                4
              ],
              [
                2,
                6
              ],
              [
                5,
                3
              ],
              [
                7,
                5
              ]
            ],
            "8": [
              [
                0,
                5
              ],
              [
                1,
                4
              ],
              [
                2,
                2
              ],
              [
                2,
                4
              ],
              [
                2,
                6
              ],
              [
                5,
                3
              ],
              [
                7,
                5
              ]
            ],
            "14": [
              [
                0,
                5
              ],
              [
                1,
                4
              ],
              [
                2,
                2
              ],
              [
                2,
                4
              ],
              [
                2,
                6
              ],
              [
                5,
                3
              ],
              [
                7,
                5
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                7,
                3
              ],
              "dx": -1,
              "dy": -1,
              "length_l1": 2
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                6,
                5
              ],
              "dx": 1,
              "dy": -2,
              "length_l1": 3
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 6,
              "look_at_cell": [
                4,
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              ],
              "dx": -1,
              "dy": -4,
              "length_l1": 5
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 7,
              "look_at_cell": [
                4,
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              ],
              "dx": 1,
              "dy": -4,
              "length_l1": 5
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                8,
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              ],
              "look_at_unit": 8,
              "look_at_cell": [
                3,
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              ],
              "dx": 1,
              "dy": -5,
              "length_l1": 6
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 14,
              "look_at_cell": [
                1,
                6
              ],
              "dx": 2,
              "dy": -7,
              "length_l1": 9
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                7,
                3
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                8,
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              ],
              "dx": 1,
              "dy": 1,
              "length_l1": 2
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                7,
                3
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                6,
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              ],
              "dx": 2,
              "dy": -1,
              "length_l1": 3
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                7,
                3
              ],
              "look_at_unit": 6,
              "look_at_cell": [
                4,
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              ],
              "dx": 0,
              "dy": -3,
              "length_l1": 3
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                7,
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              ],
              "look_at_unit": 7,
              "look_at_cell": [
                4,
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              ],
              "dx": 2,
              "dy": -3,
              "length_l1": 5
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                7,
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              ],
              "look_at_unit": 8,
              "look_at_cell": [
                3,
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              ],
              "dx": 2,
              "dy": -4,
              "length_l1": 6
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                7,
                3
              ],
              "look_at_unit": 14,
              "look_at_cell": [
                1,
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              ],
              "dx": 3,
              "dy": -6,
              "length_l1": 9
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                6,
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              "look_at_unit": 1,
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              "dx": -1,
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              "length_l1": 3
            },
            {
              "camera_unit": 4,
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            },
            {
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              "look_at_unit": 6,
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              "dx": -2,
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              "length_l1": 4
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                6,
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              "look_at_unit": 7,
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              "dx": 0,
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              "length_l1": 2
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                6,
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              ],
              "look_at_unit": 8,
              "look_at_cell": [
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              ],
              "dx": 0,
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              "length_l1": 3
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                6,
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              ],
              "look_at_unit": 14,
              "look_at_cell": [
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              ],
              "dx": 1,
              "dy": -5,
              "length_l1": 6
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                4,
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              ],
              "look_at_unit": 1,
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              ],
              "dx": 1,
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              "length_l1": 5
            },
            {
              "camera_unit": 6,
              "camera_cell": [
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              ],
              "look_at_unit": 2,
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              ],
              "dx": 0,
              "dy": 3,
              "length_l1": 3
            },
            {
              "camera_unit": 6,
              "camera_cell": [
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              ],
              "look_at_unit": 4,
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              ],
              "dx": 2,
              "dy": 2,
              "length_l1": 4
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                4,
                3
              ],
              "look_at_unit": 7,
              "look_at_cell": [
                4,
                5
              ],
              "dx": 2,
              "dy": 0,
              "length_l1": 2
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                4,
                3
              ],
              "look_at_unit": 8,
              "look_at_cell": [
                3,
                5
              ],
              "dx": 2,
              "dy": -1,
              "length_l1": 3
            },
            {
              "camera_unit": 6,
              "camera_cell": [
                4,
                3
              ],
              "look_at_unit": 14,
              "look_at_cell": [
                1,
                6
              ],
              "dx": 3,
              "dy": -3,
              "length_l1": 6
            },
            {
              "camera_unit": 7,
              "camera_cell": [
                4,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                8,
                4
              ],
              "dx": -1,
              "dy": 4,
              "length_l1": 5
            },
            {
              "camera_unit": 7,
              "camera_cell": [
                4,
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              ],
              "look_at_unit": 2,
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              ],
              "dx": -2,
              "dy": 3,
              "length_l1": 5
            },
            {
              "camera_unit": 7,
              "camera_cell": [
                4,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                6,
                5
              ],
              "dx": 0,
              "dy": 2,
              "length_l1": 2
            },
            {
              "camera_unit": 7,
              "camera_cell": [
                4,
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              ],
              "look_at_unit": 6,
              "look_at_cell": [
                4,
                3
              ],
              "dx": -2,
              "dy": 0,
              "length_l1": 2
            },
            {
              "camera_unit": 7,
              "camera_cell": [
                4,
                5
              ],
              "look_at_unit": 8,
              "look_at_cell": [
                3,
                5
              ],
              "dx": 0,
              "dy": -1,
              "length_l1": 1
            },
            {
              "camera_unit": 7,
              "camera_cell": [
                4,
                5
              ],
              "look_at_unit": 14,
              "look_at_cell": [
                1,
                6
              ],
              "dx": 1,
              "dy": -3,
              "length_l1": 4
            },
            {
              "camera_unit": 8,
              "camera_cell": [
                3,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                8,
                4
              ],
              "dx": -1,
              "dy": 5,
              "length_l1": 6
            },
            {
              "camera_unit": 8,
              "camera_cell": [
                3,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                7,
                3
              ],
              "dx": -2,
              "dy": 4,
              "length_l1": 6
            },
            {
              "camera_unit": 8,
              "camera_cell": [
                3,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                6,
                5
              ],
              "dx": 0,
              "dy": 3,
              "length_l1": 3
            },
            {
              "camera_unit": 8,
              "camera_cell": [
                3,
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              ],
              "look_at_unit": 6,
              "look_at_cell": [
                4,
                3
              ],
              "dx": -2,
              "dy": 1,
              "length_l1": 3
            },
            {
              "camera_unit": 8,
              "camera_cell": [
                3,
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              ],
              "look_at_unit": 7,
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              ],
              "dx": 0,
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            },
            {
              "camera_unit": 8,
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            },
            {
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              "look_at_unit": 1,
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              ],
              "dx": -2,
              "dy": 7,
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            },
            {
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              "look_at_unit": 2,
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            },
            {
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              "look_at_unit": 6,
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              ],
              "dx": -3,
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            },
            {
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              "look_at_unit": 7,
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              ],
              "dx": -1,
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              "length_l1": 4
            },
            {
              "camera_unit": 14,
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                1,
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              ],
              "look_at_unit": 8,
              "look_at_cell": [
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              ],
              "dx": -1,
              "dy": 2,
              "length_l1": 3
            }
          ],
          "view_cone_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                8,
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              ],
              "look_at_unit": 2,
              "look_at_cell": [
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                3
              ],
              "dx": -1,
              "dy": -1,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
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                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
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              ],
              "dx": -1,
              "dy": -1,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
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            },
            {
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                6
              ],
              "look_at_unit": 8,
              "look_at_cell": [
                3,
                5
              ],
              "dx": -1,
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              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 14,
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                1,
                6
              ],
              "look_at_unit": 8,
              "look_at_cell": [
                3,
                5
              ],
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              "lens_enum": "normal",
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            },
            {
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                1,
                6
              ],
              "look_at_unit": 8,
              "look_at_cell": [
                3,
                5
              ],
              "dx": -1,
              "dy": 2,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
              2,
              4,
              6,
              7,
              8,
              14
            ],
            "2": [
              1,
              4,
              6,
              7,
              8,
              14
            ],
            "4": [
              1,
              2,
              6,
              7,
              8,
              14
            ],
            "6": [
              1,
              2,
              4,
              7,
              8,
              14
            ],
            "7": [
              1,
              2,
              4,
              6,
              8,
              14
            ],
            "8": [
              1,
              2,
              4,
              6,
              7,
              14
            ],
            "14": [
              1,
              2,
              4,
              6,
              7,
              8
            ]
          },
          "visible_openings_candidates": {
            "1": [
              3,
              5,
              9,
              10
            ],
            "2": [
              3,
              5,
              9,
              10
            ],
            "4": [
              3,
              5,
              9,
              10
            ],
            "6": [
              3,
              5,
              9,
              10
            ],
            "7": [
              3,
              5,
              9,
              10
            ],
            "8": [
              3,
              5,
              9,
              10
            ],
            "14": [
              3,
              5,
              9,
              10
            ]
          },
          "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_exterior_stairs.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l11_rooftop_approach": {
        "fp_id": "fp_l11_rooftop_approach",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l11_rooftop_approach",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 7,
              "col": 1,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 3,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 1,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 4,
              "row": 3,
              "col": 6,
              "kind": "base_opening"
            },
            {
              "number": 5,
              "row": 5,
              "col": 4,
              "kind": "base_opening"
            },
            {
              "number": 6,
              "row": 2,
              "col": 1,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 7,
              "row": 1,
              "col": 8,
              "kind": "base_structural_unit"
            },
            {
              "number": 8,
              "row": 5,
              "col": 8,
              "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_l11_rooftop_approach",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              7,
              1
            ],
            "2": [
              3,
              4
            ],
            "3": [
              1,
              4
            ],
            "4": [
              3,
              6
            ],
            "5": [
              5,
              4
            ],
            "6": [
              2,
              1
            ],
            "7": [
              1,
              8
            ],
            "8": [
              5,
              8
            ]
          },
          "unit_marker_cells": {
            "1": [
              7,
              1
            ],
            "2": [
              3,
              4
            ],
            "3": [
              1,
              4
            ],
            "7": [
              1,
              8
            ]
          },
          "opening_marker_cells": {
            "4": [
              3,
              6
            ],
            "5": [
              5,
              4
            ]
          },
          "fixture_marker_cells": {
            "6": [
              2,
              1
            ]
          },
          "furniture_marker_cells": {
            "8": [
              5,
              8
            ]
          },
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                7,
                1
              ]
            ],
            "2": [
              [
                3,
                4
              ]
            ],
            "3": [
              [
                1,
                4
              ]
            ],
            "7": [
              [
                1,
                8
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                2,
                1
              ],
              [
                3,
                6
              ],
              [
                5,
                4
              ],
              [
                5,
                8
              ]
            ],
            "2": [
              [
                2,
                1
              ],
              [
                3,
                6
              ],
              [
                5,
                4
              ],
              [
                5,
                8
              ]
            ],
            "3": [
              [
                2,
                1
              ],
              [
                3,
                6
              ],
              [
                5,
                4
              ],
              [
                5,
                8
              ]
            ],
            "7": [
              [
                2,
                1
              ],
              [
                3,
                6
              ],
              [
                5,
                4
              ],
              [
                5,
                8
              ]
            ]
          },
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              "dx": -4,
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              "length_l1": 4
            }
          ],
          "view_cone_records": [
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              ],
              "look_at_unit": 2,
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            },
            {
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              "look_at_unit": 7,
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            },
            {
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            },
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              "dx": -3,
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              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
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              "camera_cell": [
                3,
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              ],
              "look_at_unit": 1,
              "look_at_cell": [
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              "dx": -3,
              "dy": 4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
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              "camera_cell": [
                3,
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              ],
              "look_at_unit": 1,
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              "look_at_unit": 3,
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              "dx": 0,
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              "lens_enum": "wide",
              "fov_deg": 90
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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": 1,
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              "dx": -3,
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              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                1,
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              ],
              "look_at_unit": 1,
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              ],
              "dx": -3,
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              "lens_enum": "telephoto",
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            },
            {
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              "look_at_unit": 2,
              "look_at_cell": [
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              "dx": 0,
              "dy": 2,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
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              "camera_cell": [
                1,
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              ],
              "look_at_unit": 2,
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              "dx": 0,
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            {
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              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                1,
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              ],
              "look_at_unit": 7,
              "look_at_cell": [
                1,
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              "dx": 4,
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              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
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              "look_at_unit": 7,
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            },
            {
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                1,
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              ],
              "look_at_unit": 7,
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              "dx": 4,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 7,
              "camera_cell": [
                1,
                8
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                7,
                1
              ],
              "dx": -7,
              "dy": 6,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 7,
              "camera_cell": [
                1,
                8
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                7,
                1
              ],
              "dx": -7,
              "dy": 6,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 7,
              "camera_cell": [
                1,
                8
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                7,
                1
              ],
              "dx": -7,
              "dy": 6,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 7,
              "camera_cell": [
                1,
                8
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                3,
                4
              ],
              "dx": -4,
              "dy": 2,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 7,
              "camera_cell": [
                1,
                8
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                3,
                4
              ],
              "dx": -4,
              "dy": 2,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 7,
              "camera_cell": [
                1,
                8
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                3,
                4
              ],
              "dx": -4,
              "dy": 2,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 7,
              "camera_cell": [
                1,
                8
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                1,
                4
              ],
              "dx": -4,
              "dy": 0,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 7,
              "camera_cell": [
                1,
                8
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                1,
                4
              ],
              "dx": -4,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 7,
              "camera_cell": [
                1,
                8
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                1,
                4
              ],
              "dx": -4,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
              2,
              3,
              7
            ],
            "2": [
              1,
              3,
              7
            ],
            "3": [
              1,
              2,
              7
            ],
            "7": [
              1,
              2,
              3
            ]
          },
          "visible_openings_candidates": {
            "1": [
              4,
              5
            ],
            "2": [
              4,
              5
            ],
            "3": [
              4,
              5
            ],
            "7": [
              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_l11_rooftop_approach.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l08_store_main": {
        "fp_id": "fp_l08_store_main",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l08_store_main",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 3,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 7,
              "col": 2,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 7,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 4,
              "row": 8,
              "col": 5,
              "kind": "base_opening"
            },
            {
              "number": 5,
              "row": 8,
              "col": 1,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 6,
              "row": 3,
              "col": 2,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 7,
              "row": 3,
              "col": 4,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 8,
              "row": 3,
              "col": 7,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 9,
              "row": 6,
              "col": 4,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 10,
              "row": 0,
              "col": 5,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 11,
              "row": 4,
              "col": 9,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 12,
              "row": 0,
              "col": 1,
              "kind": "base_opening"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [
            "observed_markers[6] cell (3,4) shares a 10x10 cell with marker #1 (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 (3,4) shares a 10x10 cell with marker #1 (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_l08_store_main",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              3,
              4
            ],
            "2": [
              7,
              2
            ],
            "3": [
              7,
              5
            ],
            "4": [
              8,
              5
            ],
            "5": [
              8,
              1
            ],
            "6": [
              3,
              2
            ],
            "7": [
              3,
              4
            ],
            "8": [
              3,
              7
            ],
            "9": [
              6,
              4
            ],
            "10": [
              0,
              5
            ],
            "11": [
              4,
              9
            ],
            "12": [
              0,
              1
            ]
          },
          "unit_marker_cells": {
            "1": [
              3,
              4
            ],
            "2": [
              7,
              2
            ],
            "3": [
              7,
              5
            ]
          },
          "opening_marker_cells": {
            "4": [
              8,
              5
            ],
            "12": [
              0,
              1
            ]
          },
          "fixture_marker_cells": {
            "5": [
              8,
              1
            ],
            "10": [
              0,
              5
            ],
            "11": [
              4,
              9
            ]
          },
          "furniture_marker_cells": {
            "6": [
              3,
              2
            ],
            "7": [
              3,
              4
            ],
            "8": [
              3,
              7
            ],
            "9": [
              6,
              4
            ]
          },
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                3,
                4
              ]
            ],
            "2": [
              [
                7,
                2
              ]
            ],
            "3": [
              [
                7,
                5
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                0,
                1
              ],
              [
                0,
                5
              ],
              [
                3,
                2
              ],
              [
                3,
                4
              ],
              [
                3,
                7
              ],
              [
                4,
                9
              ],
              [
                6,
                4
              ],
              [
                8,
                1
              ],
              [
                8,
                5
              ]
            ],
            "2": [
              [
                0,
                1
              ],
              [
                0,
                5
              ],
              [
                3,
                2
              ],
              [
                3,
                4
              ],
              [
                3,
                7
              ],
              [
                4,
                9
              ],
              [
                6,
                4
              ],
              [
                8,
                1
              ],
              [
                8,
                5
              ]
            ],
            "3": [
              [
                0,
                1
              ],
              [
                0,
                5
              ],
              [
                3,
                2
              ],
              [
                3,
                4
              ],
              [
                3,
                7
              ],
              [
                4,
                9
              ],
              [
                6,
                4
              ],
              [
                8,
                1
              ],
              [
                8,
                5
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                3,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                7,
                2
              ],
              "dx": -2,
              "dy": 4,
              "length_l1": 6
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                3,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                5
              ],
              "dx": 1,
              "dy": 4,
              "length_l1": 5
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                7,
                2
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                3,
                4
              ],
              "dx": 2,
              "dy": -4,
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              "look_at_unit": 3,
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            },
            {
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              ],
              "look_at_unit": 1,
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              ],
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            },
            {
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            }
          ],
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              ],
              "look_at_unit": 2,
              "look_at_cell": [
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              ],
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            },
            {
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              ],
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              ],
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              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
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                3,
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              ],
              "look_at_unit": 2,
              "look_at_cell": [
                7,
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              ],
              "dx": -2,
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              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
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                3,
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              ],
              "look_at_unit": 3,
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            {
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              ],
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            },
            {
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              "look_at_unit": 1,
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                3,
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              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
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              "camera_cell": [
                7,
                2
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                3,
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              ],
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              "lens_enum": "telephoto",
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            },
            {
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              ],
              "look_at_unit": 3,
              "look_at_cell": [
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              ],
              "dx": 3,
              "dy": 0,
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              "fov_deg": 90
            },
            {
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                2
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                5
              ],
              "dx": 3,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                7,
                2
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                5
              ],
              "dx": 3,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                3,
                4
              ],
              "dx": -1,
              "dy": -4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                3,
                4
              ],
              "dx": -1,
              "dy": -4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                3,
                4
              ],
              "dx": -1,
              "dy": -4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                7,
                2
              ],
              "dx": -3,
              "dy": 0,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                7,
                2
              ],
              "dx": -3,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                7,
                2
              ],
              "dx": -3,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
              2,
              3
            ],
            "2": [
              1,
              3
            ],
            "3": [
              1,
              2
            ]
          },
          "visible_openings_candidates": {
            "1": [
              4,
              12
            ],
            "2": [
              4,
              12
            ],
            "3": [
              4,
              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 #7 shares 10x10 cell (3,4) with marker #1 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ],
          "diagnostics": [
            "observed_marker #7 shares 10x10 cell (3,4) with marker #1 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ]
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_l08_store_main.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l09_exterior_entrance": {
        "fp_id": "fp_l09_exterior_entrance",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l09_exterior_entrance",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 1,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 3,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 3,
              "col": 8,
              "kind": "base_structural_unit"
            },
            {
              "number": 4,
              "row": 3,
              "col": 2,
              "kind": "base_structural_unit"
            },
            {
              "number": 5,
              "row": 6,
              "col": 5,
              "kind": "base_opening"
            },
            {
              "number": 6,
              "row": 5,
              "col": 2,
              "kind": "base_opening"
            },
            {
              "number": 7,
              "row": 7,
              "col": 1,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 8,
              "row": 8,
              "col": 1,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 9,
              "row": 9,
              "col": 5,
              "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_l09_exterior_entrance",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              1,
              4
            ],
            "2": [
              3,
              5
            ],
            "3": [
              3,
              8
            ],
            "4": [
              3,
              2
            ],
            "5": [
              6,
              5
            ],
            "6": [
              5,
              2
            ],
            "7": [
              7,
              1
            ],
            "8": [
              8,
              1
            ],
            "9": [
              9,
              5
            ]
          },
          "unit_marker_cells": {
            "1": [
              1,
              4
            ],
            "2": [
              3,
              5
            ],
            "3": [
              3,
              8
            ],
            "4": [
              3,
              2
            ],
            "9": [
              9,
              5
            ]
          },
          "opening_marker_cells": {
            "5": [
              6,
              5
            ],
            "6": [
              5,
              2
            ]
          },
          "fixture_marker_cells": {
            "7": [
              7,
              1
            ],
            "8": [
              8,
              1
            ]
          },
          "furniture_marker_cells": {},
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                1,
                4
              ]
            ],
            "2": [
              [
                3,
                5
              ]
            ],
            "3": [
              [
                3,
                8
              ]
            ],
            "4": [
              [
                3,
                2
              ]
            ],
            "9": [
              [
                9,
                5
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                5,
                2
              ],
              [
                6,
                5
              ],
              [
                7,
                1
              ],
              [
                8,
                1
              ]
            ],
            "2": [
              [
                5,
                2
              ],
              [
                6,
                5
              ],
              [
                7,
                1
              ],
              [
                8,
                1
              ]
            ],
            "3": [
              [
                5,
                2
              ],
              [
                6,
                5
              ],
              [
                7,
                1
              ],
              [
                8,
                1
              ]
            ],
            "4": [
              [
                5,
                2
              ],
              [
                6,
                5
              ],
              [
                7,
                1
              ],
              [
                8,
                1
              ]
            ],
            "9": [
              [
                5,
                2
              ],
              [
                6,
                5
              ],
              [
                7,
                1
              ],
              [
                8,
                1
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                3,
                5
              ],
              "dx": 1,
              "dy": 2,
              "length_l1": 3
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                8
              ],
              "dx": 4,
              "dy": 2,
              "length_l1": 6
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                3,
                2
              ],
              "dx": -2,
              "dy": 2,
              "length_l1": 4
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 9,
              "look_at_cell": [
                9,
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              ],
              "dx": 1,
              "dy": 8,
              "length_l1": 9
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                3,
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              ],
              "look_at_unit": 1,
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              ],
              "dx": -1,
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            },
            {
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              ],
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              ],
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              "length_l1": 3
            },
            {
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              "camera_cell": [
                3,
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              ],
              "look_at_unit": 4,
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                3,
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              ],
              "dx": -3,
              "dy": 0,
              "length_l1": 3
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                3,
                5
              ],
              "look_at_unit": 9,
              "look_at_cell": [
                9,
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              ],
              "dx": 0,
              "dy": 6,
              "length_l1": 6
            },
            {
              "camera_unit": 3,
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                3,
                8
              ],
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                1,
                4
              ],
              "dx": -4,
              "dy": -2,
              "length_l1": 6
            },
            {
              "camera_unit": 3,
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                3,
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              ],
              "look_at_unit": 2,
              "look_at_cell": [
                3,
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              ],
              "dx": -3,
              "dy": 0,
              "length_l1": 3
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                8
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                3,
                2
              ],
              "dx": -6,
              "dy": 0,
              "length_l1": 6
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                8
              ],
              "look_at_unit": 9,
              "look_at_cell": [
                9,
                5
              ],
              "dx": -3,
              "dy": 6,
              "length_l1": 9
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                3,
                2
              ],
              "look_at_unit": 1,
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                1,
                4
              ],
              "dx": 2,
              "dy": -2,
              "length_l1": 4
            },
            {
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              "dx": 3,
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            },
            {
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              "length_l1": 6
            },
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              ],
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            },
            {
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              ],
              "look_at_unit": 1,
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                1,
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              ],
              "dx": -1,
              "dy": -8,
              "length_l1": 9
            },
            {
              "camera_unit": 9,
              "camera_cell": [
                9,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                3,
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              ],
              "dx": 0,
              "dy": -6,
              "length_l1": 6
            },
            {
              "camera_unit": 9,
              "camera_cell": [
                9,
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              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
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              ],
              "dx": 3,
              "dy": -6,
              "length_l1": 9
            },
            {
              "camera_unit": 9,
              "camera_cell": [
                9,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                3,
                2
              ],
              "dx": -3,
              "dy": -6,
              "length_l1": 9
            }
          ],
          "view_cone_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                3,
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              ],
              "dx": 1,
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              "fov_deg": 90
            },
            {
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                1,
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              ],
              "look_at_unit": 2,
              "look_at_cell": [
                3,
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              ],
              "dx": 1,
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              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                3,
                5
              ],
              "dx": 1,
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            },
            {
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              ],
              "look_at_unit": 3,
              "look_at_cell": [
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              ],
              "dx": 4,
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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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                1,
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              ],
              "look_at_unit": 4,
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              ],
              "dx": -2,
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              "lens_enum": "wide",
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            },
            {
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              ],
              "look_at_unit": 4,
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              ],
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            },
            {
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              ],
              "look_at_unit": 4,
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              ],
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            },
            {
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              ],
              "look_at_unit": 9,
              "look_at_cell": [
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              ],
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            },
            {
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              ],
              "look_at_unit": 9,
              "look_at_cell": [
                9,
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              ],
              "dx": 1,
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              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                1,
                4
              ],
              "look_at_unit": 9,
              "look_at_cell": [
                9,
                5
              ],
              "dx": 1,
              "dy": 8,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                3,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                1,
                4
              ],
              "dx": -1,
              "dy": -2,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                3,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                1,
                4
              ],
              "dx": -1,
              "dy": -2,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                3,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                1,
                4
              ],
              "dx": -1,
              "dy": -2,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                3,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                8
              ],
              "dx": 3,
              "dy": 0,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                3,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                8
              ],
              "dx": 3,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                3,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                8
              ],
              "dx": 3,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                3,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                3,
                2
              ],
              "dx": -3,
              "dy": 0,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                3,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                3,
                2
              ],
              "dx": -3,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                3,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                3,
                2
              ],
              "dx": -3,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                3,
                5
              ],
              "look_at_unit": 9,
              "look_at_cell": [
                9,
                5
              ],
              "dx": 0,
              "dy": 6,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                3,
                5
              ],
              "look_at_unit": 9,
              "look_at_cell": [
                9,
                5
              ],
              "dx": 0,
              "dy": 6,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                3,
                5
              ],
              "look_at_unit": 9,
              "look_at_cell": [
                9,
                5
              ],
              "dx": 0,
              "dy": 6,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                8
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                1,
                4
              ],
              "dx": -4,
              "dy": -2,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                8
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                1,
                4
              ],
              "dx": -4,
              "dy": -2,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                8
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                1,
                4
              ],
              "dx": -4,
              "dy": -2,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                8
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                3,
                5
              ],
              "dx": -3,
              "dy": 0,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                8
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                3,
                5
              ],
              "dx": -3,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                8
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                3,
                5
              ],
              "dx": -3,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                8
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                3,
                2
              ],
              "dx": -6,
              "dy": 0,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                8
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                3,
                2
              ],
              "dx": -6,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                8
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                3,
                2
              ],
              "dx": -6,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                8
              ],
              "look_at_unit": 9,
              "look_at_cell": [
                9,
                5
              ],
              "dx": -3,
              "dy": 6,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                8
              ],
              "look_at_unit": 9,
              "look_at_cell": [
                9,
                5
              ],
              "dx": -3,
              "dy": 6,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                3,
                8
              ],
              "look_at_unit": 9,
              "look_at_cell": [
                9,
                5
              ],
              "dx": -3,
              "dy": 6,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                3,
                2
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                1,
                4
              ],
              "dx": 2,
              "dy": -2,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                3,
                2
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                1,
                4
              ],
              "dx": 2,
              "dy": -2,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                3,
                2
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                1,
                4
              ],
              "dx": 2,
              "dy": -2,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                3,
                2
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                3,
                5
              ],
              "dx": 3,
              "dy": 0,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                3,
                2
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                3,
                5
              ],
              "dx": 3,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                3,
                2
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                3,
                5
              ],
              "dx": 3,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                3,
                2
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                8
              ],
              "dx": 6,
              "dy": 0,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                3,
                2
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                8
              ],
              "dx": 6,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                3,
                2
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                8
              ],
              "dx": 6,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                3,
                2
              ],
              "look_at_unit": 9,
              "look_at_cell": [
                9,
                5
              ],
              "dx": 3,
              "dy": 6,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                3,
                2
              ],
              "look_at_unit": 9,
              "look_at_cell": [
                9,
                5
              ],
              "dx": 3,
              "dy": 6,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                3,
                2
              ],
              "look_at_unit": 9,
              "look_at_cell": [
                9,
                5
              ],
              "dx": 3,
              "dy": 6,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 9,
              "camera_cell": [
                9,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                1,
                4
              ],
              "dx": -1,
              "dy": -8,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 9,
              "camera_cell": [
                9,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                1,
                4
              ],
              "dx": -1,
              "dy": -8,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 9,
              "camera_cell": [
                9,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                1,
                4
              ],
              "dx": -1,
              "dy": -8,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 9,
              "camera_cell": [
                9,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                3,
                5
              ],
              "dx": 0,
              "dy": -6,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 9,
              "camera_cell": [
                9,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                3,
                5
              ],
              "dx": 0,
              "dy": -6,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 9,
              "camera_cell": [
                9,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                3,
                5
              ],
              "dx": 0,
              "dy": -6,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 9,
              "camera_cell": [
                9,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                8
              ],
              "dx": 3,
              "dy": -6,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 9,
              "camera_cell": [
                9,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                8
              ],
              "dx": 3,
              "dy": -6,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 9,
              "camera_cell": [
                9,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                8
              ],
              "dx": 3,
              "dy": -6,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 9,
              "camera_cell": [
                9,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                3,
                2
              ],
              "dx": -3,
              "dy": -6,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 9,
              "camera_cell": [
                9,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                3,
                2
              ],
              "dx": -3,
              "dy": -6,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 9,
              "camera_cell": [
                9,
                5
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                3,
                2
              ],
              "dx": -3,
              "dy": -6,
              "lens_enum": "telephoto",
              "fov_deg": 25
            }
          ],
          "visible_units_candidates": {
            "1": [
              2,
              3,
              4,
              9
            ],
            "2": [
              1,
              3,
              4,
              9
            ],
            "3": [
              1,
              2,
              4,
              9
            ],
            "4": [
              1,
              2,
              3,
              9
            ],
            "9": [
              1,
              2,
              3,
              4
            ]
          },
          "visible_openings_candidates": {
            "1": [
              5,
              6
            ],
            "2": [
              5,
              6
            ],
            "3": [
              5,
              6
            ],
            "4": [
              5,
              6
            ],
            "9": [
              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_l09_exterior_entrance.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l10_admin_office": {
        "fp_id": "fp_l10_admin_office",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l10_admin_office",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 2,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 5,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 7,
              "col": 2,
              "kind": "base_structural_unit"
            },
            {
              "number": 4,
              "row": 7,
              "col": 6,
              "kind": "base_structural_unit"
            },
            {
              "number": 5,
              "row": 8,
              "col": 1,
              "kind": "base_opening"
            },
            {
              "number": 6,
              "row": 1,
              "col": 5,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 7,
              "row": 0,
              "col": 4,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 8,
              "row": 2,
              "col": 4,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 9,
              "row": 6,
              "col": 8,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 10,
              "row": 1,
              "col": 9,
              "kind": "base_persistent_fixture"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [
            "observed_markers[7] cell (2,4) shares a 10x10 cell with marker #1 (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 (2,4) shares a 10x10 cell with marker #1 (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_l10_admin_office",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              2,
              4
            ],
            "2": [
              5,
              4
            ],
            "3": [
              7,
              2
            ],
            "4": [
              7,
              6
            ],
            "5": [
              8,
              1
            ],
            "6": [
              1,
              5
            ],
            "7": [
              0,
              4
            ],
            "8": [
              2,
              4
            ],
            "9": [
              6,
              8
            ],
            "10": [
              1,
              9
            ]
          },
          "unit_marker_cells": {
            "1": [
              2,
              4
            ],
            "2": [
              5,
              4
            ],
            "3": [
              7,
              2
            ],
            "4": [
              7,
              6
            ]
          },
          "opening_marker_cells": {
            "5": [
              8,
              1
            ]
          },
          "fixture_marker_cells": {
            "7": [
              0,
              4
            ],
            "10": [
              1,
              9
            ]
          },
          "furniture_marker_cells": {
            "6": [
              1,
              5
            ],
            "8": [
              2,
              4
            ],
            "9": [
              6,
              8
            ]
          },
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                2,
                4
              ]
            ],
            "2": [
              [
                5,
                4
              ]
            ],
            "3": [
              [
                7,
                2
              ]
            ],
            "4": [
              [
                7,
                6
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                0,
                4
              ],
              [
                1,
                5
              ],
              [
                1,
                9
              ],
              [
                2,
                4
              ],
              [
                6,
                8
              ],
              [
                8,
                1
              ]
            ],
            "2": [
              [
                0,
                4
              ],
              [
                1,
                5
              ],
              [
                1,
                9
              ],
              [
                2,
                4
              ],
              [
                6,
                8
              ],
              [
                8,
                1
              ]
            ],
            "3": [
              [
                0,
                4
              ],
              [
                1,
                5
              ],
              [
                1,
                9
              ],
              [
                2,
                4
              ],
              [
                6,
                8
              ],
              [
                8,
                1
              ]
            ],
            "4": [
              [
                0,
                4
              ],
              [
                1,
                5
              ],
              [
                1,
                9
              ],
              [
                2,
                4
              ],
              [
                6,
                8
              ],
              [
                8,
                1
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                2,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                4
              ],
              "dx": 0,
              "dy": 3,
              "length_l1": 3
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                2,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                2
              ],
              "dx": -2,
              "dy": 5,
              "length_l1": 7
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                2,
                4
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                7,
                6
              ],
              "dx": 2,
              "dy": 5,
              "length_l1": 7
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                5,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                2,
                4
              ],
              "dx": 0,
              "dy": -3,
              "length_l1": 3
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                5,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                2
              ],
              "dx": -2,
              "dy": 2,
              "length_l1": 4
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            },
            {
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            {
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              ],
              "look_at_unit": 3,
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                7,
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              ],
              "dx": -4,
              "dy": 0,
              "length_l1": 4
            }
          ],
          "view_cone_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                2,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                4
              ],
              "dx": 0,
              "dy": 3,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                2,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
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              ],
              "dx": 0,
              "dy": 3,
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              "fov_deg": 50
            },
            {
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              ],
              "look_at_unit": 2,
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              ],
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            },
            {
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            {
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            {
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            {
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                5,
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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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                5,
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              ],
              "look_at_unit": 3,
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              "dx": -2,
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              "lens_enum": "wide",
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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": 1,
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              ],
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            },
            {
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              "camera_cell": [
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              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
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              ],
              "dx": 2,
              "dy": -2,
              "lens_enum": "wide",
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            },
            {
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              "camera_cell": [
                7,
                2
              ],
              "look_at_unit": 2,
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                5,
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              ],
              "dx": 2,
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              "lens_enum": "normal",
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            },
            {
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              ],
              "look_at_unit": 2,
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                5,
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              ],
              "dx": 2,
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            },
            {
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              "camera_cell": [
                7,
                2
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                7,
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              ],
              "dx": 4,
              "dy": 0,
              "lens_enum": "wide",
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            },
            {
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                2
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                7,
                6
              ],
              "dx": 4,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                2
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                7,
                6
              ],
              "dx": 4,
              "dy": 0,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                7,
                6
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                2,
                4
              ],
              "dx": -2,
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              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                7,
                6
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                2,
                4
              ],
              "dx": -2,
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              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                7,
                6
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                2,
                4
              ],
              "dx": -2,
              "dy": -5,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                7,
                6
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                4
              ],
              "dx": -2,
              "dy": -2,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                7,
                6
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                4
              ],
              "dx": -2,
              "dy": -2,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                7,
                6
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                5,
                4
              ],
              "dx": -2,
              "dy": -2,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                7,
                6
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                2
              ],
              "dx": -4,
              "dy": 0,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                7,
                6
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                2
              ],
              "dx": -4,
              "dy": 0,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                7,
                6
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                2
              ],
              "dx": -4,
              "dy": 0,
              "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
            ],
            "2": [
              5
            ],
            "3": [
              5
            ],
            "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": [
            "observed_marker #8 shares 10x10 cell (2,4) with marker #1 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ],
          "diagnostics": [
            "observed_marker #8 shares 10x10 cell (2,4) with marker #1 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ]
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_l10_admin_office.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l13_office": {
        "fp_id": "fp_l13_office",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l13_office",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 6,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 3,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 8,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 4,
              "row": 6,
              "col": 7,
              "kind": "base_structural_unit"
            },
            {
              "number": 5,
              "row": 7,
              "col": 6,
              "kind": "base_opening"
            },
            {
              "number": 6,
              "row": 0,
              "col": 4,
              "kind": "base_opening"
            },
            {
              "number": 7,
              "row": 4,
              "col": 7,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 8,
              "row": 4,
              "col": 2,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 9,
              "row": 1,
              "col": 2,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 10,
              "row": 1,
              "col": 7,
              "kind": "base_persistent_furniture"
            },
            {
              "number": 11,
              "row": 4,
              "col": 6,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 12,
              "row": 6,
              "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_l13_office",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              6,
              4
            ],
            "2": [
              3,
              4
            ],
            "3": [
              8,
              4
            ],
            "4": [
              6,
              7
            ],
            "5": [
              7,
              6
            ],
            "6": [
              0,
              4
            ],
            "7": [
              4,
              7
            ],
            "8": [
              4,
              2
            ],
            "9": [
              1,
              2
            ],
            "10": [
              1,
              7
            ],
            "11": [
              4,
              6
            ],
            "12": [
              6,
              8
            ]
          },
          "unit_marker_cells": {
            "1": [
              6,
              4
            ],
            "2": [
              3,
              4
            ],
            "3": [
              8,
              4
            ],
            "4": [
              6,
              7
            ]
          },
          "opening_marker_cells": {
            "5": [
              7,
              6
            ],
            "6": [
              0,
              4
            ]
          },
          "fixture_marker_cells": {
            "11": [
              4,
              6
            ],
            "12": [
              6,
              8
            ]
          },
          "furniture_marker_cells": {
            "7": [
              4,
              7
            ],
            "8": [
              4,
              2
            ],
            "9": [
              1,
              2
            ],
            "10": [
              1,
              7
            ]
          },
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                6,
                4
              ]
            ],
            "2": [
              [
                3,
                4
              ]
            ],
            "3": [
              [
                8,
                4
              ]
            ],
            "4": [
              [
                6,
                7
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                0,
                4
              ],
              [
                1,
                2
              ],
              [
                1,
                7
              ],
              [
                4,
                2
              ],
              [
                4,
                6
              ],
              [
                4,
                7
              ],
              [
                6,
                8
              ],
              [
                7,
                6
              ]
            ],
            "2": [
              [
                0,
                4
              ],
              [
                1,
                2
              ],
              [
                1,
                7
              ],
              [
                4,
                2
              ],
              [
                4,
                6
              ],
              [
                4,
                7
              ],
              [
                6,
                8
              ],
              [
                7,
                6
              ]
            ],
            "3": [
              [
                0,
                4
              ],
              [
                1,
                2
              ],
              [
                1,
                7
              ],
              [
                4,
                2
              ],
              [
                4,
                6
              ],
              [
                4,
                7
              ],
              [
                6,
                8
              ],
              [
                7,
                6
              ]
            ],
            "4": [
              [
                0,
                4
              ],
              [
                1,
                2
              ],
              [
                1,
                7
              ],
              [
                4,
                2
              ],
              [
                4,
                6
              ],
              [
                4,
                7
              ],
              [
                6,
                8
              ],
              [
                7,
                6
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                6,
                4
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                3,
                4
              ],
              "dx": 0,
              "dy": -3,
              "length_l1": 3
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                6,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                4
              ],
              "dx": 0,
              "dy": 2,
              "length_l1": 2
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                6,
                4
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                6,
                7
              ],
              "dx": 3,
              "dy": 0,
              "length_l1": 3
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                3,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                6,
                4
              ],
              "dx": 0,
              "dy": 3,
              "length_l1": 3
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                3,
                4
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                8,
                4
              ],
              "dx": 0,
              "dy": 5,
              "length_l1": 5
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                3,
                4
              ],
              "look_at_unit": 4,
              "look_at_cell": [
                6,
                7
              ],
              "dx": 3,
              "dy": 3,
              "length_l1": 6
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                8,
                4
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                6,
                4
              ],
              "dx": 0,
              "dy": -2,
              "length_l1": 2
            },
            {
              "camera_unit": 3,
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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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              6
            ],
            "4": [
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              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_l13_office.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l13_corridor": {
        "fp_id": "fp_l13_corridor",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l13_corridor",
          "grid_size": [
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            10
          ],
          "observed_markers": [
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              "number": 1,
              "row": 4,
              "col": 2,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 3,
              "col": 6,
              "kind": "base_structural_unit"
            },
            {
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              "row": 5,
              "col": 3,
              "kind": "base_structural_unit"
            },
            {
              "number": 4,
              "row": 4,
              "col": 4,
              "kind": "base_opening"
            },
            {
              "number": 5,
              "row": 5,
              "col": 7,
              "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_l13_corridor",
          "grid_size": [
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            10
          ],
          "readback_status": "ok",
          "marker_cells": {
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            ],
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            ],
            "3": [
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            ],
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            ],
            "5": [
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            ]
          },
          "unit_marker_cells": {
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            ],
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              6
            ],
            "3": [
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              3
            ]
          },
          "opening_marker_cells": {
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              4
            ]
          },
          "fixture_marker_cells": {},
          "furniture_marker_cells": {
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              7
            ]
          },
          "camera_cell_candidates_per_unit": {
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              [
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                2
              ]
            ],
            "2": [
              [
                3,
                6
              ]
            ],
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              [
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          },
          "look_at_cell_candidates_per_unit": {
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                4
              ],
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              ]
            ],
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              ]
            ],
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          },
          "direction_vector_records": [
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                2
              ],
              "look_at_unit": 2,
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          ],
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            {
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              "look_at_unit": 2,
              "look_at_cell": [
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              "dy": -2,
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            },
            {
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              "camera_cell": [
                5,
                3
              ],
              "look_at_unit": 2,
              "look_at_cell": [
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                6
              ],
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            {
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          ],
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            ],
            "2": [
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            ],
            "3": [
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            ]
          },
          "visible_openings_candidates": {
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              4
            ],
            "2": [
              4
            ],
            "3": [
              4
            ]
          },
          "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_corridor.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l17_deck": {
        "fp_id": "fp_l17_deck",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l17_deck",
          "grid_size": [
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            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 0,
              "col": 4,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 3,
              "col": 2,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 3,
              "col": 7,
              "kind": "base_structural_unit"
            },
            {
              "number": 4,
              "row": 2,
              "col": 3,
              "kind": "base_structural_unit"
            },
            {
              "number": 5,
              "row": 2,
              "col": 6,
              "kind": "base_opening"
            },
            {
              "number": 6,
              "row": 3,
              "col": 4,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 7,
              "row": 4,
              "col": 3,
              "kind": "base_opening"
            },
            {
              "number": 8,
              "row": 4,
              "col": 6,
              "kind": "base_opening"
            },
            {
              "number": 9,
              "row": 6,
              "col": 2,
              "kind": "base_opening"
            },
            {
              "number": 10,
              "row": 6,
              "col": 7,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 11,
              "row": 6,
              "col": 6,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 12,
              "row": 8,
              "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_l17_deck",
          "grid_size": [
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            10
          ],
          "readback_status": "ok",
          "marker_cells": {
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              4
            ],
            "2": [
              3,
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            ],
            "3": [
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            ],
            "4": [
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            "5": [
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            "12": [
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          },
          "unit_marker_cells": {
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            ],
            "3": [
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              7
            ],
            "4": [
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          },
          "opening_marker_cells": {
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            ],
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            ],
            "8": [
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            ],
            "9": [
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          },
          "fixture_marker_cells": {
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            ],
            "11": [
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            "12": [
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            ]
          },
          "furniture_marker_cells": {},
          "camera_cell_candidates_per_unit": {
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              [
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            ],
            "2": [
              [
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          },
          "look_at_cell_candidates_per_unit": {
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          "direction_vector_records": [
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              "dx": 4,
              "dy": 1,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 4,
              "camera_cell": [
                2,
                3
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                3,
                7
              ],
              "dx": 4,
              "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": [
              5,
              7,
              8,
              9
            ],
            "2": [
              5,
              7,
              8,
              9
            ],
            "3": [
              5,
              7,
              8,
              9
            ],
            "4": [
              5,
              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_l17_deck.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      },
      "fp_l18_wheelhouse": {
        "fp_id": "fp_l18_wheelhouse",
        "readback_status": "ok",
        "readback": {
          "status": "ok",
          "fp_id": "fp_l18_wheelhouse",
          "grid_size": [
            10,
            10
          ],
          "observed_markers": [
            {
              "number": 1,
              "row": 5,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 2,
              "row": 1,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 3,
              "row": 7,
              "col": 5,
              "kind": "base_structural_unit"
            },
            {
              "number": 4,
              "row": 0,
              "col": 5,
              "kind": "base_opening"
            },
            {
              "number": 5,
              "row": 3,
              "col": 2,
              "kind": "base_opening"
            },
            {
              "number": 6,
              "row": 3,
              "col": 7,
              "kind": "base_opening"
            },
            {
              "number": 7,
              "row": 9,
              "col": 5,
              "kind": "base_opening"
            },
            {
              "number": 8,
              "row": 2,
              "col": 6,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 9,
              "row": 2,
              "col": 5,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 10,
              "row": 2,
              "col": 6,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 11,
              "row": 2,
              "col": 3,
              "kind": "base_persistent_fixture"
            },
            {
              "number": 12,
              "row": 3,
              "col": 5,
              "kind": "base_persistent_furniture"
            }
          ],
          "missing_markers": [],
          "extra_markers": [],
          "confidence": 0.99,
          "diagnostics": [
            "observed_markers[9] cell (2,6) 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[9] cell (2,6) 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_l18_wheelhouse",
          "grid_size": [
            10,
            10
          ],
          "readback_status": "ok",
          "marker_cells": {
            "1": [
              5,
              5
            ],
            "2": [
              1,
              5
            ],
            "3": [
              7,
              5
            ],
            "4": [
              0,
              5
            ],
            "5": [
              3,
              2
            ],
            "6": [
              3,
              7
            ],
            "7": [
              9,
              5
            ],
            "8": [
              2,
              6
            ],
            "9": [
              2,
              5
            ],
            "10": [
              2,
              6
            ],
            "11": [
              2,
              3
            ],
            "12": [
              3,
              5
            ]
          },
          "unit_marker_cells": {
            "1": [
              5,
              5
            ],
            "2": [
              1,
              5
            ],
            "3": [
              7,
              5
            ]
          },
          "opening_marker_cells": {
            "4": [
              0,
              5
            ],
            "5": [
              3,
              2
            ],
            "6": [
              3,
              7
            ],
            "7": [
              9,
              5
            ]
          },
          "fixture_marker_cells": {
            "8": [
              2,
              6
            ],
            "9": [
              2,
              5
            ],
            "10": [
              2,
              6
            ],
            "11": [
              2,
              3
            ]
          },
          "furniture_marker_cells": {
            "12": [
              3,
              5
            ]
          },
          "camera_cell_candidates_per_unit": {
            "1": [
              [
                5,
                5
              ]
            ],
            "2": [
              [
                1,
                5
              ]
            ],
            "3": [
              [
                7,
                5
              ]
            ]
          },
          "look_at_cell_candidates_per_unit": {
            "1": [
              [
                0,
                5
              ],
              [
                2,
                3
              ],
              [
                2,
                5
              ],
              [
                2,
                6
              ],
              [
                3,
                2
              ],
              [
                3,
                5
              ],
              [
                3,
                7
              ],
              [
                9,
                5
              ]
            ],
            "2": [
              [
                0,
                5
              ],
              [
                2,
                3
              ],
              [
                2,
                5
              ],
              [
                2,
                6
              ],
              [
                3,
                2
              ],
              [
                3,
                5
              ],
              [
                3,
                7
              ],
              [
                9,
                5
              ]
            ],
            "3": [
              [
                0,
                5
              ],
              [
                2,
                3
              ],
              [
                2,
                5
              ],
              [
                2,
                6
              ],
              [
                3,
                2
              ],
              [
                3,
                5
              ],
              [
                3,
                7
              ],
              [
                9,
                5
              ]
            ]
          },
          "direction_vector_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 0,
              "dy": -4,
              "length_l1": 4
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                5
              ],
              "dx": 0,
              "dy": 2,
              "length_l1": 2
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                5
              ],
              "dx": 0,
              "dy": 4,
              "length_l1": 4
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                5
              ],
              "dx": 0,
              "dy": 6,
              "length_l1": 6
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                5
              ],
              "dx": 0,
              "dy": -2,
              "length_l1": 2
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 0,
              "dy": -6,
              "length_l1": 6
            }
          ],
          "view_cone_records": [
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 0,
              "dy": -4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 0,
              "dy": -4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 0,
              "dy": -4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                5
              ],
              "dx": 0,
              "dy": 2,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                5
              ],
              "dx": 0,
              "dy": 2,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 1,
              "camera_cell": [
                5,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                5
              ],
              "dx": 0,
              "dy": 2,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                5
              ],
              "dx": 0,
              "dy": 4,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                5
              ],
              "dx": 0,
              "dy": 4,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                5
              ],
              "dx": 0,
              "dy": 4,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                5
              ],
              "dx": 0,
              "dy": 6,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                5
              ],
              "dx": 0,
              "dy": 6,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 2,
              "camera_cell": [
                1,
                5
              ],
              "look_at_unit": 3,
              "look_at_cell": [
                7,
                5
              ],
              "dx": 0,
              "dy": 6,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                5
              ],
              "dx": 0,
              "dy": -2,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                5
              ],
              "dx": 0,
              "dy": -2,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                5
              ],
              "look_at_unit": 1,
              "look_at_cell": [
                5,
                5
              ],
              "dx": 0,
              "dy": -2,
              "lens_enum": "telephoto",
              "fov_deg": 25
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 0,
              "dy": -6,
              "lens_enum": "wide",
              "fov_deg": 90
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 0,
              "dy": -6,
              "lens_enum": "normal",
              "fov_deg": 50
            },
            {
              "camera_unit": 3,
              "camera_cell": [
                7,
                5
              ],
              "look_at_unit": 2,
              "look_at_cell": [
                1,
                5
              ],
              "dx": 0,
              "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,
              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 #10 shares 10x10 cell (2,6) with marker #8 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ],
          "diagnostics": [
            "observed_marker #10 shares 10x10 cell (2,6) with marker #8 (W20E6-A: surfaced as diagnostic, not a hard failure)"
          ]
        },
        "review_html_relative_path": "floor_plan_geometry_readback/review_html/fp_l18_wheelhouse.html",
        "real_vlm_call": true,
        "real_vlm_call_count": 1
      }
    },
    "real_vlm_call_count": 14,
    "image_api_call_count": 0,
    "llm_call_count": 0
  },
  "step_id": "floor_plan_geometry_readback",
  "run_id": "9e549168-8845-4ab1-996d-420ffa681238",
  "resolved_model": "gpt",
  "updated_at": "2026-07-23T11:58:50.084409+00:00",
  "project_config_snapshot": {}
}