{"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-0t6yaqcu","versions":[{"created_at":"2026-06-04T05:49:42Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.8→99.8 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.8 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"768d55b9c47248f641e9ccf15d28e92b34dfe9126644669fb6c53c42fbad7bb5","version":10},{"created_at":"2026-06-04T04:53:52Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 68.4→99.8 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.8 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"746cabf52f8d474134e1448906803c2d41a61c15da10e9f13ed34b2d7dd4bf8f","version":9},{"created_at":"2026-06-04T04:53:52Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"3734336b519aff8dcd5dd8ec537ff3bba7ffa650d34360bbb08d5b521aaa500c","version":8}]}