{"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-zh6g94cb","versions":[{"created_at":"2026-07-24T08:18:25Z","element_count":180,"note":"言葉から生成: 中庭ロの字 / 越屋根のある自然素材の家・通風重視 / 越屋根(切妻/片流れ) / 中央中庭(採光・通風塔) / 吹抜け(自然換気) / 土間(親水性/断熱) / 縁側(中間領域)","saved_by":"mcp:create","sha256":"","version":1}]}