{"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-ree45lob","versions":[{"created_at":"2026-07-22T02:19:05Z","element_count":101,"note":"loop3: 設計時延床 85.0㎡ を投入 (見積過大の根治)","saved_by":"mcp","sha256":"9ae1a8daba5769be9c2c57cd92b79ac194a5fa4735da5610e086570d69d0beea","version":2},{"created_at":"2026-07-22T02:19:05Z","element_count":101,"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}]}