{"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-9x783ahi","versions":[{"created_at":"2026-06-04T17:01:35Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.6->99.6)","saved_by":"editor","sha256":"064e630ad8a542944eb857ff2e1c0e3a75c493d1fc145deef0b89def972bcb61","version":11},{"created_at":"2026-06-04T05:52:49Z","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":"2026-06-04T04:59:36Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 33.9→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":"c912cfdc1996dd07ad8431ad95f4d6f446b91d1d9d231396ed15d7cafe7f8cea","version":9},{"created_at":"2026-06-04T04:59:36Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"a10819b8804627aef1d76e454d80329a6183593c4829256310dc3d2c332dccb4","version":8}]}