{"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-c8mn0lkd","versions":[{"created_at":"2026-06-04T05:49:35Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 100.0→100.0 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 100.0 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"8b94140bb4c27366c1ae07c8251ebd3137762ae5b13cbc3368518b523a241907","version":10},{"created_at":"2026-06-04T04:59:08Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 38.2→100.0 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 100.0 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"d375c0da2824ce1cdc4dcc41348271426024614ad6e1253db1bfd51165ce09b4","version":9},{"created_at":"2026-06-04T04:59:08Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"430a274a6cad27af4069e4b040059f182a5a0943d6e58f5c56278fe86dfc0391","version":8}]}