{"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-wvj1rml6","versions":[{"created_at":"2026-06-07T15:01:00Z","element_count":91,"note":"fork元 u-house-cdhc80dz / 木造軸組版 / 延床159㎡ 本体工事¥44432511 (現実単価28万/㎡) / 土地出典 https://suumo.jp/tochi/hyogo/sc_kobeshihigashinada/nc_20715567/ 14800万円","saved_by":"editor","sha256":"b499d539f56acb7e3cfb8faa458b140e77540fdd6567eadbccadbb60fbb09041","version":2}]}