{"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-clt-y4ufc42i","versions":[{"created_at":"2026-06-07T14:58:51Z","element_count":89,"note":"fork元 u-house-74yqeymn / CLT パネル版 / 延床165㎡ 本体工事¥65844964 (現実単価40万/㎡) / 土地出典 https://suumo.jp/tochi/tokyo/sc_setagaya/nc_78996528/ 19980万円","saved_by":"editor","sha256":"c04a6a3e32ba1b86d3ebc7e72f5326cf16aceecbee942f09f1da06acd483c88c","version":2}]}