{"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-g1-b3m9b01e","versions":[{"created_at":"2026-06-04T05:49:37Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.9→99.9 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.9 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"e9005d969e10ef243a40e4139136b0ecc787f99fcad97c3c5248f83f5385b429","version":4},{"created_at":"2026-06-04T04:59:12Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 38.0→99.9 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.9 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"bfcf5978059f8e2f3c80221d2514a03b9075c01117529bbf0833402ef616fda5","version":3},{"created_at":"2026-06-04T04:59:12Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"5e93a929a69f45b4f1b7c449bf4c7500d271e0f38b40303eba587073b77ce94e","version":2}]}