{"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-00uwc16c","versions":[{"created_at":"2026-06-04T05:51:30Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 98.3→98.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.3 (美 100 環 95 楽 100))","saved_by":"editor","sha256":"8b8447b7bdcc5001b83770d204bd3e62c3e80d6f99816af44964e565210ea2bb","version":10},{"created_at":"2026-06-04T04:58:11Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 45.2→98.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.3 (美 100 環 95 楽 100))","saved_by":"editor","sha256":"4d14a23bd9ea4d2e733ba5ed1d644996b024aa7d99d0ba6a2886ee493df51908","version":9},{"created_at":"2026-06-04T04:58:11Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"eb528ab3c7565d4c5ae0dec6567f8b5be630df7d80a950e0583ef41669d5f4c6","version":8}]}