{"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-ouqa0yiv","versions":[{"created_at":"2026-06-04T05:54:55Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 93.6→94.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"b78753ab899b05b9ab710699b7972f3b6c862d8237644e02e580bd94d1a99b48","version":10},{"created_at":"2026-06-04T04:59:08Z","element_count":72,"note":"GA batch-improve 2026-06-04: 総合 38.2→93.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 93.6 (美 93 環 100 楽 100))","saved_by":"editor","sha256":"b1654b30e006ed729942551a7278c2e465b92eb146ee8e31115ad51fe9fd0ca4","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":"42bf541b9e1866fc86c52419980df8a9d6ec3096da7de02f5a05f86e425b4f0d","version":8}]}