{"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-f8q7ogln","versions":[{"created_at":"2026-06-23T22:08:54Z","element_count":170,"note":"言葉から生成: 総2階(箱) / ロフト付きワンルーム・吹抜・大開口 / 吹抜(+ロフト) / 高性能サッシ(+Low-E) / 床暖房(+高気密) / 雪降ろし易い屋根形状 / 防犯(+防犯カメラ)","saved_by":"mcp:create","sha256":"","version":1}]}