{"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-094ior52","versions":[{"created_at":"2026-07-24T11:46:38Z","element_count":189,"note":"言葉から生成: 総2階(箱) / 茶室と縁側のある和の住まい / 吹抜付き茶室 / 全面縁側 / 高断熱高気密 / 積雪対応平屋勾配 / 中庭採光","saved_by":"mcp:create","sha256":"","version":1}]}