{"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-ji2upeku","versions":[{"created_at":"2026-06-10T22:52:23Z","element_count":77,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy72816480→quote19841009 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"04065b364abe9b2a1539212ecd2a75b90de3f7ad3d4493733277c0de8810f177","version":23},{"created_at":"2026-06-10T13:30:02Z","element_count":77,"note":"backfill: 延床=居室床スラブ実面積77.3㎡(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":"6c21ddd163d179c20d15f8feb9f4d9decd06fbd1fb73ba078212aa8519a3ab46","version":9},{"created_at":"2026-06-10T11:43:37Z","element_count":84,"note":"5軸GA polish 60->98 by M5 (autonomous)","saved_by":"mcp","sha256":"a533c00f44b56b6d9f9fde09cbb5f7f4be0d82ecb898ca45ecb895bd00a6fbce","version":4}]}