{"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-luo75oi5","versions":[{"created_at":"2026-06-26T06:53:09Z","element_count":84,"note":"5軸GA polish 44->98 by M5 (autonomous)","saved_by":"mcp","sha256":"b96e9968df6c6837e4152a036a3b129d01e806b95556e079fb81945e7ba9a620","version":3},{"created_at":"2026-06-26T06:48:07Z","element_count":134,"note":"loop3: 設計時延床 85.0㎡ を投入 (見積過大の根治)","saved_by":"mcp","sha256":"7ad618168a6b0f323ccacf4ce45ffd10c55be42aa1218d4f582b75fd3bce821a","version":2},{"created_at":"2026-06-26T06:48:07Z","element_count":134,"note":"言葉から生成: LDK+主寝室+子供室2+浴室+収納","saved_by":"mcp:create","sha256":"","version":1}]}