{"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-kgmj5yyu","versions":[{"created_at":"2026-06-10T23:58:01Z","element_count":71,"note":"5軸GA polish 50->96 by M5 (autonomous)","saved_by":"mcp","sha256":"5d671bc5c446b131672a24bb65322b5aa1ed51a646e7b7115372b38ebaa9cafd","version":13},{"created_at":"2026-06-10T23:09:47Z","element_count":50,"note":"legacy fix: 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":"93e1159fa0774a9ec080a13746d2cfbe9d98203a1b8ca902d96d9a66248b176c","version":7}]}