{"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-cwea7d0j","versions":[{"created_at":"2026-07-03T13:34:48Z","element_count":92,"note":"言葉から生成: 平屋(矩形) / 平屋の別荘・大きな軒・土間 / 360度3.0m大屋根 / 開放的土間 / 南面360度採光 / 高気密高断熱 / 雪対策勾配屋根","saved_by":"mcp:create","sha256":"","version":1}]}