{"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-vf9lbdtr","versions":[{"created_at":"2026-06-04T05:49:46Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 99.8→99.8 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.8 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"5473c06a5212f10e19405c6aa067aeed067bfe571f8bd7639a6de8c2b3f9530a","version":10},{"created_at":"2026-06-04T04:57:55Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 45.7→99.8 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.8 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"b179cceb18c294bf554de2c63e19627eb598c7be26eeca8aaa249ccccc7c0aea","version":9},{"created_at":"2026-06-04T04:57:55Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"56450ec7aeb377d25848d3093ae5c338caafe8192060461973e4f7d676fecb9b","version":8}]}