{"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-2-zsuk48ow","versions":[{"created_at":"2026-06-04T05:52:48Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.6→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"b2814a93c5f5e21194a1c708466c916b8ad48293fabc50c8011cb87dbedcede1","version":10},{"created_at":"2026-06-04T04:58:22Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 44.3→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"15dd1dba6992209689ccb992e4d2f9dbe290da7b619836d3650485faa3982ae4","version":9},{"created_at":"2026-06-04T04:58:22Z","element_count":20,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"b542022425dc7c645aebb16a17fb717f7cddc9f57794b8862d6c8abd873be436","version":8}]}