{"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-g3-o4wipzqe","versions":[{"created_at":"2026-06-04T05:51:53Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 97.4→97.4 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 97.4 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"7786c1466fe612e335a4d8380017a75fbc7f0e8b36cca095e033154e3d4c5177","version":4},{"created_at":"2026-06-04T04:58:09Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 45.2→97.4 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 97.4 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"6d87777615034189efc58183e18d0d9e9d9735a3c3035748c987381be44e782a","version":3},{"created_at":"2026-06-04T04:58:09Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"d423d4d392d353a426e4d90d2b8289e305b784b9d92fbeb6719c65a8463bdb73","version":2}]}