{
  "project_id": "6cb862d9-590c-4dce-86e6-d10c2977db19",
  "episode_id": "08ad2cd3-3e96-4d84-808f-869ee628473c",
  "label": "Task 14 fresh full E2E (post reference-necessity)",
  "total_locations": 19,
  "total_chain_bg_assets": 21,
  "total_floor_plan_assets": 10,
  "over_split_groups": [
    {
      "base_location_id": "L04",
      "name": "인천 변두리 다세대 빌라 옥탑방 외부와 옥상 마당",
      "variant_count": 3,
      "variants": [
        "L04B02",
        "L04B03",
        "L04B01"
      ]
    },
    {
      "base_location_id": "L05",
      "name": "옥탑방 내부",
      "variant_count": 8,
      "variants": [
        "L05B01",
        "L05B07",
        "L05B08",
        "L05B05",
        "L05B06",
        "L05B04",
        "L05B02",
        "L05B03"
      ]
    }
  ],
  "unused_locations": [
    {
      "short_id": "L01",
      "name": "숲속"
    },
    {
      "short_id": "L02",
      "name": "도시 뒷골목"
    },
    {
      "short_id": "L03",
      "name": "폴리스 라인이 쳐진 낮의 사건 현장"
    },
    {
      "short_id": "L06",
      "name": "해안가 도로"
    },
    {
      "short_id": "L07",
      "name": "유기견 보호원"
    },
    {
      "short_id": "L09",
      "name": "대형 마트 매장 내부"
    },
    {
      "short_id": "L12",
      "name": "해안가 버스정류장"
    },
    {
      "short_id": "L15",
      "name": "PC방 내부"
    },
    {
      "short_id": "L16",
      "name": "안개 낀 포구와 선착장"
    },
    {
      "short_id": "L19",
      "name": "바다 위 안개벽 해상"
    }
  ],
  "raw_locations": [
    {
      "short_id": "L01",
      "name": "숲속",
      "space_profile": {
        "kind": "single_space",
        "allowed_space_keys": [
          "main"
        ],
        "default_space_key": null
      },
      "chain_bg_count": 0,
      "chain_bg_variants": [],
      "floor_plan_count": 0,
      "floor_plan_variants": []
    },
    {
      "short_id": "L02",
      "name": "도시 뒷골목",
      "space_profile": {
        "kind": "single_space",
        "allowed_space_keys": [
          "main"
        ],
        "default_space_key": null
      },
      "chain_bg_count": 0,
      "chain_bg_variants": [],
      "floor_plan_count": 0,
      "floor_plan_variants": []
    },
    {
      "short_id": "L03",
      "name": "폴리스 라인이 쳐진 낮의 사건 현장",
      "space_profile": {
        "kind": "single_space",
        "allowed_space_keys": [
          "main"
        ],
        "default_space_key": null
      },
      "chain_bg_count": 0,
      "chain_bg_variants": [],
      "floor_plan_count": 0,
      "floor_plan_variants": []
    },
    {
      "short_id": "L04",
      "name": "인천 변두리 다세대 빌라 옥탑방 외부와 옥상 마당",
      "space_profile": {
        "kind": "single_space",
        "allowed_space_keys": [
          "main"
        ],
        "default_space_key": null
      },
      "chain_bg_count": 3,
      "chain_bg_variants": [
        "L04B02",
        "L04B03",
        "L04B01"
      ],
      "floor_plan_count": 1,
      "floor_plan_variants": [
        "fp_rooftop_yard_main"
      ]
    },
    {
      "short_id": "L05",
      "name": "옥탑방 내부",
      "space_profile": {
        "kind": "multi_space",
        "allowed_space_keys": [
          "main",
          "kitchen"
        ],
        "default_space_key": "main"
      },
      "chain_bg_count": 8,
      "chain_bg_variants": [
        "L05B01",
        "L05B07",
        "L05B08",
        "L05B05",
        "L05B06",
        "L05B04",
        "L05B02",
        "L05B03"
      ],
      "floor_plan_count": 1,
      "floor_plan_variants": [
        "fp_rooftop_room_main"
      ]
    },
    {
      "short_id": "L06",
      "name": "해안가 도로",
      "space_profile": {
        "kind": "single_space",
        "allowed_space_keys": [
          "main"
        ],
        "default_space_key": null
      },
      "chain_bg_count": 0,
      "chain_bg_variants": [],
      "floor_plan_count": 0,
      "floor_plan_variants": []
    },
    {
      "short_id": "L07",
      "name": "유기견 보호원",
      "space_profile": {
        "kind": "multi_space",
        "allowed_space_keys": [
          "main",
          "yard",
          "office"
        ],
        "default_space_key": "main"
      },
      "chain_bg_count": 0,
      "chain_bg_variants": [],
      "floor_plan_count": 0,
      "floor_plan_variants": []
    },
    {
      "short_id": "L08",
      "name": "번화가 도로와 대형 마트 외부",
      "space_profile": {
        "kind": "single_space",
        "allowed_space_keys": [
          "main"
        ],
        "default_space_key": null
      },
      "chain_bg_count": 2,
      "chain_bg_variants": [
        "L08B01",
        "L08B02"
      ],
      "floor_plan_count": 1,
      "floor_plan_variants": [
        "fp_l08_supermarket_exterior"
      ]
    },
    {
      "short_id": "L09",
      "name": "대형 마트 매장 내부",
      "space_profile": {
        "kind": "single_space",
        "allowed_space_keys": [
          "main"
        ],
        "default_space_key": null
      },
      "chain_bg_count": 0,
      "chain_bg_variants": [],
      "floor_plan_count": 0,
      "floor_plan_variants": []
    },
    {
      "short_id": "L10",
      "name": "마트 총무과 사무실",
      "space_profile": {
        "kind": "single_space",
        "allowed_space_keys": [
          "main"
        ],
        "default_space_key": null
      },
      "chain_bg_count": 1,
      "chain_bg_variants": [
        "L10B01"
      ],
      "floor_plan_count": 1,
      "floor_plan_variants": [
        "fp_l10_admin_office"
      ]
    },
    {
      "short_id": "L11",
      "name": "다세대 빌라 외부 마당과 옥탑 계단 및 건물 앞 길가",
      "space_profile": {
        "kind": "multi_space",
        "allowed_space_keys": [
          "main",
          "exterior",
          "yard",
          "stairs"
        ],
        "default_space_key": "exterior"
      },
      "chain_bg_count": 2,
      "chain_bg_variants": [
        "L11B02",
        "L11B01"
      ],
      "floor_plan_count": 2,
      "floor_plan_variants": [
        "fp_villa_rooftop_stairs",
        "fp_villa_yard"
      ]
    },
    {
      "short_id": "L12",
      "name": "해안가 버스정류장",
      "space_profile": {
        "kind": "single_space",
        "allowed_space_keys": [
          "main"
        ],
        "default_space_key": null
      },
      "chain_bg_count": 0,
      "chain_bg_variants": [],
      "floor_plan_count": 0,
      "floor_plan_variants": []
    },
    {
      "short_id": "L13",
      "name": "경찰서 사무실 내부",
      "space_profile": {
        "kind": "single_space",
        "allowed_space_keys": [
          "main"
        ],
        "default_space_key": null
      },
      "chain_bg_count": 2,
      "chain_bg_variants": [
        "L13B02",
        "L13B01"
      ],
      "floor_plan_count": 1,
      "floor_plan_variants": [
        "fp_police_office_main"
      ]
    },
    {
      "short_id": "L14",
      "name": "경찰서 건물 앞",
      "space_profile": {
        "kind": "single_space",
        "allowed_space_keys": [
          "main"
        ],
        "default_space_key": null
      },
      "chain_bg_count": 1,
      "chain_bg_variants": [
        "L14B01"
      ],
      "floor_plan_count": 1,
      "floor_plan_variants": [
        "fp_police_station_front_main"
      ]
    },
    {
      "short_id": "L15",
      "name": "PC방 내부",
      "space_profile": {
        "kind": "single_space",
        "allowed_space_keys": [
          "main"
        ],
        "default_space_key": null
      },
      "chain_bg_count": 0,
      "chain_bg_variants": [],
      "floor_plan_count": 0,
      "floor_plan_variants": []
    },
    {
      "short_id": "L16",
      "name": "안개 낀 포구와 선착장",
      "space_profile": {
        "kind": "single_space",
        "allowed_space_keys": [
          "main"
        ],
        "default_space_key": null
      },
      "chain_bg_count": 0,
      "chain_bg_variants": [],
      "floor_plan_count": 0,
      "floor_plan_variants": []
    },
    {
      "short_id": "L17",
      "name": "소형어선 갑판",
      "space_profile": {
        "kind": "single_space",
        "allowed_space_keys": [
          "main"
        ],
        "default_space_key": null
      },
      "chain_bg_count": 1,
      "chain_bg_variants": [
        "L17B01"
      ],
      "floor_plan_count": 1,
      "floor_plan_variants": [
        "fp_deck_main"
      ]
    },
    {
      "short_id": "L18",
      "name": "소형어선 조타실",
      "space_profile": {
        "kind": "single_space",
        "allowed_space_keys": [
          "main"
        ],
        "default_space_key": null
      },
      "chain_bg_count": 1,
      "chain_bg_variants": [
        "L18B01"
      ],
      "floor_plan_count": 1,
      "floor_plan_variants": [
        "fp_wheelhouse_main"
      ]
    },
    {
      "short_id": "L19",
      "name": "바다 위 안개벽 해상",
      "space_profile": {
        "kind": "single_space",
        "allowed_space_keys": [
          "main"
        ],
        "default_space_key": null
      },
      "chain_bg_count": 0,
      "chain_bg_variants": [],
      "floor_plan_count": 0,
      "floor_plan_variants": []
    }
  ],
  "note_isolated_variants": "DB schema has no parent_location_id / chain key on chain_bg assets — chain_bg variants are always linked to a single LXX location entity via image_asset.entity_id (UUID). 'Over-split' here means many chain_bg image variants per LXX location (Cat A symptom). There is NO LXXBYY level entity_canon row — the BXX suffix exists only in file_path. Therefore 'isolated_variants' (Cat B as originally defined) does not apply structurally; Cat B must be reframed as 'multiple chain_bg variants of the same LXX never used together' (see TSV mismatch_flag_candidates for MULTI_BG / OVER_SPLIT_HOST)."
}