{"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-3zvikcty","versions":[{"created_at":"2026-06-04T05:50:42Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.5→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"6886082af5915beb30932f455cce9d2f4c2b6cffeb07b6fbea4113da0fd3ea3c","version":10},{"created_at":"2026-06-04T04:57:09Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 48.2→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"945b14b35c662551231d9af95cda1507bf0eb8650e9e8d946f2ea57a82ef8c7f","version":9},{"created_at":"2026-06-04T04:57:09Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"2bc9ebb3e0c32c801e02965f6d3b04f5c0ae726920706e90e260ce9de2d65d9c","version":8}]}