{"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-ukwn5711","versions":[{"created_at":"2026-06-07T14:58:09Z","element_count":91,"note":"fork元 u-house-74yqeymn / 木造軸組版 / 延床167㎡ 本体工事¥46688924 (現実単価28万/㎡) / 土地出典 https://suumo.jp/tochi/tokyo/sc_setagaya/nc_78996528/ 19980万円","saved_by":"editor","sha256":"fb8413fea77bdb102ca3e311c38a96f41fa45d2fca985c6ed39cad2ba6138d93","version":2}]}