{"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-v1jxo2o3","versions":[{"created_at":"2026-06-04T06:04:28Z","element_count":99,"note":"GA diverse final 2026-06-04: 総合 89.0→99.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.0 (美 100 環 96 楽 100))","saved_by":"editor","sha256":"0132e278d84686000b7ef6ffa51af404b9a9644337d2b6e15fa7f350af9e0e23","version":11},{"created_at":"2026-06-04T05:51:12Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 99.0→89.0 (総2階(箱)・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 89.0 (美 94 環 95 楽 91))","saved_by":"editor","sha256":"f27adf445188c4d1b0d90d656c4879aff99c307ba237f3b3f1a52b60344fc35b","version":10},{"created_at":"2026-06-04T04:54:33Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 65.9→99.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.0 (美 100 環 96 楽 100))","saved_by":"editor","sha256":"7b55a4d8186e5d962ec3f4aead4c37dcd3926814354ea18de49d495ec49d1642","version":9},{"created_at":"2026-06-04T04:54:33Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"bddc5890f630a1daa9e1c251adcd841906e4bdd4b0993f1ec0b98a862f482c8c","version":8}]}