{"note":"bim_versions 導入後の保存のみ記録 (それ以前は bim_canonical 上書きで履歴なし)","ok":true,"slug":"u-house-8ovvby60","versions":[{"created_at":"2026-06-10T22:52:09Z","element_count":66,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy85444799→quote25257164 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"c8e7ddbf7f2857212ed34c86365f9c3cfe466e67de0689b6bdee46da9bf2b7bc","version":26},{"created_at":"2026-06-10T21:59:43Z","element_count":55,"note":"revert: houki rescan NG -> restore pre-polish elements (M5 2026-06-11)","saved_by":"mcp","sha256":"61dcc8ff74bfdd12400ed4a53f806fe30affdb250d560b397f6550316ddc687a","version":20},{"created_at":"2026-06-10T13:14:33Z","element_count":66,"note":"backfill: 延床=居室床スラブ実面積118.8㎡(基礎/屋外/ロフト除外)。設備数量/コスト過大の是正","saved_by":"mcp","sha256":"8c2f628355862c37cfc892d30aee57e1681c08f17e62812fc4d1e6da5717fc7b","version":10},{"created_at":"2026-06-10T09:21:29Z","element_count":73,"note":"5軸GA polish 61->97 by M5 (autonomous)","saved_by":"mcp","sha256":"cd9ff3bc379d7a4d84c5a93aba49012fea9377c7f54ba88f3e22d2d0f7ea1904","version":2}]}