{"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-xop9nbm7","versions":[{"created_at":"2026-07-07T08:36:21Z","element_count":135,"note":"言葉から生成: 中庭ロの字 / 中庭のある回遊動線・ロの字 / 回遊動線 / 吹抜け / サッシ断熱 / 緑化 / 採光確保","saved_by":"mcp:create","sha256":"","version":1}]}