{"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-wh0eps2e","versions":[{"created_at":"2026-06-04T05:49:57Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.6→99.6 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.6 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"4232aec4b120446fb12b91930347bc0398af0f22e6c2b23ff55b5b250a6ffbd0","version":10},{"created_at":"2026-06-04T04:54:10Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 67.2→99.6 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.6 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"5fefa97916d691724987fa1111517951e7270e2e4cac73471925b59ffd50d7ca","version":9},{"created_at":"2026-06-04T04:54:10Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"57a5b594fd3527951930606f0fef0c425fd7f719ced06678e2e3587dbfc0c5c3","version":8}]}