{"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-255g4kvo","versions":[{"created_at":"2026-06-04T05:53:49Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.0→94.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.0 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"2e8edf91e0098e7157e561e86eeb67953d2dd13f36bf0270e3adfd206fb949b0","version":10},{"created_at":"2026-06-04T04:56:10Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 57.2→94.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.0 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"f1c4bd34868bbaa48b75834a602ee90d5c68cf2ba84292e76425bc8631f66185","version":9},{"created_at":"2026-06-04T04:56:10Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"597757db9c462defaa1d6b8c09e62e7449bf51b07992f376d6d55d3fa3f1d4a1","version":8}]}