{"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-7lueenro","versions":[{"created_at":"2026-06-10T22:52:24Z","element_count":77,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy87413760→quote22947594 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"f898e41a435982faf3bf834344ca2c292271e4709f480c5d2bec27dd460f1605","version":23},{"created_at":"2026-06-10T13:29:56Z","element_count":77,"note":"backfill: 延床=居室床スラブ実面積97.8㎡(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":"626cbf6e0ca0d68f9a481948e554694ddb98eccc3c0af95bb639e70656803844","version":9},{"created_at":"2026-06-10T11:43:40Z","element_count":68,"note":"5軸GA polish 61->95 by M5 (autonomous)","saved_by":"mcp","sha256":"f0f0e7254ba1cb41296485a4a3e601a51a0b2561673ae641974b15372b087ff2","version":4}]}