{"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-wvox4nvm","versions":[{"created_at":"2026-06-10T22:52:31Z","element_count":65,"note":"legacy fix: 平屋floors2→1 / rooms設備語除去 / jpy75041820→quote21461389 (旧世代データ是正・実験済u-house-890wnsao・rollback=m5:legacy_fix_rollback.jsonl)","saved_by":"mcp","sha256":"80d0dbd89396e9688517a0cc7147dd017ab62bfe90f4ccb48185dd7c3ff2e3cc","version":20},{"created_at":"2026-06-10T13:34:55Z","element_count":65,"note":"backfill: 延床=居室床スラブ実面積93.9㎡(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":"6452895ff0e6aca15cca6c65b1b60ad74233d0220142bb59dcc4163ac4ce9248","version":7},{"created_at":"2026-06-10T13:05:27Z","element_count":90,"note":"5軸GA polish 54->98 by M5 (autonomous)","saved_by":"mcp","sha256":"b99956352a6f286f10d177a733760f5ddf59f70323f539551097ceac6b74f43b","version":4}]}