{"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-thelodgeph92-9q66cy5l","versions":[{"created_at":"2026-10-27T06:47:37Z","element_count":132,"note":"","saved_by":"editor","sha256":"2f87bb250236c0dece73dcb92c38f63cbe03ccd7e4d2aaaba46c5f21a472facb","version":2}]}