{"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-2-3qh9781j","versions":[{"created_at":"2026-06-04T14:57:01Z","element_count":99,"note":"polish: batch-improve-100 2026-06-04 (96.7->97.5)","saved_by":"editor","sha256":"f446da5ccadba9414206fd82c97f4d803b29edb83f56ce582bb6e0b2ecd02897","version":11},{"created_at":"2026-06-04T05:52:19Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 95.5→96.7 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 96.7 (美 100 環 93 楽 100))","saved_by":"editor","sha256":"8aeea7fe0ac497884bfd2601c2dfb78158b90ddc13b0c3becb5034ca0ab6310b","version":10},{"created_at":"2026-06-04T04:58:15Z","element_count":102,"note":"GA batch-improve 2026-06-04: 総合 44.9→95.5 (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 95.5 (美 93 環 97 楽 100))","saved_by":"editor","sha256":"d33e7ce168655712811bf084faf0f1c47a51703f2919f159035f1c113176dec7","version":9},{"created_at":"2026-06-04T04:58:15Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"b1874c1b63abb2b882d7062889f83efdc71b6d495841d9f6e74c86ef8bf8bd66","version":8}]}