{"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-0k1z8iwt","versions":[{"created_at":"2026-07-19T08:57:08Z","element_count":167,"note":"言葉から生成: 総2階(箱) / 越屋根のある自然素材の家・通風重視 / 南面バルコニー / 北面吹抜け / 越屋根 / 耐震壁強化 / 高気密高断熱","saved_by":"mcp:create","sha256":"","version":1}]}