{"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-t9knquwm","versions":[{"created_at":"2026-06-04T05:52:52Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.6→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":"b2814a93c5f5e21194a1c708466c916b8ad48293fabc50c8011cb87dbedcede1","version":10},{"created_at":"2026-06-04T04:53:44Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 69.0→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":"8aa5aecd49b2a2e21cd8c7e84ed06f559f6fd927a31948dfc9e1080ad70639e1","version":9},{"created_at":"2026-06-04T04:53:44Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"a753500982190791776f4a20a15c9ea51c6008b7d672cebfbee4f13721ec5e05","version":8}]}