{"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-efyyn2lz","versions":[{"created_at":"2026-06-19T12:05:53Z","element_count":131,"note":"言葉から生成: 総2階(箱) / 狭小の町家・吹抜・坪庭 / 吹抜 / 坪庭 / 高断熱・気密施工 / 雪対策","saved_by":"mcp:create","sha256":"","version":1}]}