{"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-urp79tzy","versions":[{"created_at":"2026-06-10T23:11:49Z","element_count":66,"note":"legacy fix(retry): jpy84109586→quote21671148 (旧世代データ是正・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"070ccdb6edfd3afb40130cfacc6540cdcc0bf580caa66eea70b2f208cd629cfb","version":27},{"created_at":"2026-06-10T22:52:01Z","element_count":66,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"424dc20d9500d61f0e897e39ceca2ccaaf22cd59f2d4f1eff11daeecaa4950cd","version":26},{"created_at":"2026-06-10T13:10:07Z","element_count":66,"note":"backfill: 延床=居室床スラブ実面積93.5㎡(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":"17d24f898ab3043a94533944d556d5f05b2e2ba35a87c24fddab885c2234e28d","version":11},{"created_at":"2026-06-10T07:59:55Z","element_count":90,"note":"5軸GA polish 54->98 by M5 (autonomous)","saved_by":"mcp","sha256":"52259ae9725f3f1fa3fc87ddaf3af4e1a37ae21d1ed48e795d29aaa97ed8684d","version":2}]}