{"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-2sb9vmtp","versions":[{"created_at":"2026-07-17T13:46:33Z","element_count":231,"note":"言葉から生成: 中庭ロの字 / 犬と暮らす土間広めの家・ドッグラン / 吹抜付き広間(22.22㎡) / 2階吹き抜けドッグラン(22.22㎡) / 2階テラス(22.22㎡) / 2階バルコニー(22.22㎡)","saved_by":"mcp:create","sha256":"","version":1}]}