{"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-g2-xk2thdo7","versions":[{"created_at":"2026-06-04T05:52:30Z","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":"05a23daa68d335f0be88a820fd6ee950b9fc80fe6da8e43f6e28f0f954737f0c","version":4},{"created_at":"2026-06-04T04:56:03Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 57.9→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":"a13c087111158820ca2e3afc8b120b54424b75ec1e462fa81e32eb2b45ce5ed0","version":3},{"created_at":"2026-06-04T04:56:03Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"a34deee32cd6e29259abaf251f28b1f1b3245e3bef6b82969bb8fe58d4b417f2","version":2}]}