{"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-qewoqund","versions":[{"created_at":"2026-06-10T23:56:38Z","element_count":70,"note":"5軸GA polish 54->96 by M5 (autonomous)","saved_by":"mcp","sha256":"cf96b4539c0bbca67940381287468e35a3405738f6949d2b933819e4ec6ff8a4","version":12},{"created_at":"2026-06-10T23:09:50Z","element_count":47,"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":"8830df3d5bfc7a0afe88030d480618057c3eae87db3e5af78673088cabfb794f","version":7}]}