{"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-q1qlumc7","versions":[{"created_at":"2026-06-10T22:52:19Z","element_count":66,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy68153976→quote23387862 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"ef6a721b6ba4a2b78f9b133020ebd969360032b4cde34d0eb5bae1306a583224","version":25},{"created_at":"2026-06-10T13:24:19Z","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":"570e9519116297e436bfc30c4033632b5d375b7e531a8e823c7ac4261dd93315","version":10},{"created_at":"2026-06-10T10:53:10Z","element_count":83,"note":"5軸GA polish 61->98 by M5 (autonomous)","saved_by":"mcp","sha256":"db8f4039fd9edb4591c352f7606c4cec36c107dbd43f39013c92c492af30da34","version":3}]}