{"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-8oc6cacw","versions":[{"created_at":"2026-06-10T22:52:28Z","element_count":66,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy96334560→quote23833549 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"619ee5d173cfdda03c3a8dce103b0876ea819fdcf23d5afffc7c74b22fc2a4ae","version":22},{"created_at":"2026-06-10T22:00:40Z","element_count":47,"note":"revert: houki rescan NG -> restore pre-polish elements (M5 2026-06-11)","saved_by":"mcp","sha256":"0c1b762a2666239a675a723d68f6c023749f95d5fb95785b196a6b4328daafd7","version":16},{"created_at":"2026-06-10T13:33:01Z","element_count":66,"note":"backfill: 延床=居室床スラブ実面積106.2㎡(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":"9d81f172dfef3bb9ce1644586deb8e776990d298c624a29b4d1d71b7c69ec1b5","version":7},{"created_at":"2026-06-10T12:16:04Z","element_count":72,"note":"5軸GA polish 56->96 by M5 (autonomous)","saved_by":"mcp","sha256":"bcf729b836c8a50ff9ff2574e1fe687b7ef8d2b8bee8a47212af666a0c94f812","version":3}]}