{"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-me7121vk","versions":[{"created_at":"2026-06-04T05:51:59Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 97.1→97.1 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 97.1 (美 100 環 98 楽 100))","saved_by":"editor","sha256":"6545eed254a7c622460733fb30cb27bca59c644bfc716bd36d6465bdc3002de5","version":4},{"created_at":"2026-06-04T04:57:08Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 48.3→97.1 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 97.1 (美 100 環 98 楽 100))","saved_by":"editor","sha256":"c73960ab821b13ef40c0669a92f4c64ee9c94ccf3117fcda6b5153dc5f2996bf","version":3},{"created_at":"2026-06-04T04:57:08Z","element_count":75,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"04657fdafde53a44b11314840d249ab9962dc99bbd1369d6e7ff3f6c22786aa8","version":2}]}