{"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-a6b5g4g9","versions":[{"created_at":"2026-06-04T07:22:14Z","element_count":98,"note":"GA polish 2026-06-04: 総合 95.0→96.8 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 96.8 (美 100 環 99 楽 100))","saved_by":"editor","sha256":"576c9646391423b6c574fb1c5a20fcce6f93ce67bfecfbc476e4b41774755849","version":11},{"created_at":"2026-06-04T05:52:21Z","element_count":101,"note":"GA diverse re-design 2026-06-04: 総合 94.9→95.0 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 95.0 (美 94 環 99 楽 100))","saved_by":"editor","sha256":"8a1900e2c01de99cd1da0dd03e7ecd1a96e190bcef5c5053478286290dea7e7c","version":10},{"created_at":"2026-06-04T04:56:59Z","element_count":97,"note":"GA batch-improve 2026-06-04: 総合 48.8→94.9 (中庭ロの字・吹抜 ピアノ室 PV 天窓 / 適応度 94.9 (美 100 環 89 楽 100))","saved_by":"editor","sha256":"afa66231417e5c12eeac5b924889427685ce3fc37d1589fc9e043a8424bb374c","version":9},{"created_at":"2026-06-04T04:56:59Z","element_count":51,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"b17025efc04f4cde491e95504b0ece55e9d193a6949cf01d19d4b0637566e0d4","version":8}]}