{"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-9xg91j9r","versions":[{"created_at":"2026-06-07T14:54:34Z","element_count":90,"note":"fork元 u-house-kb3l7bm2 / CLT パネル版 / 延床173㎡ 本体工事¥69326799 (現実単価40万/㎡) / 土地出典 https://suumo.jp/tochi/hyogo/sc_kobeshihigashinada/nc_97910324/ 4680万円","saved_by":"editor","sha256":"43c2ec024e0d0bf592e627cf7ce67ce37b9f02d35447ced5035e842b96f588cd","version":2}]}