{"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-hhfx5zbh","versions":[{"created_at":"2026-06-04T17:01:36Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.0->99.1)","saved_by":"editor","sha256":"f96c605c2aed0e37245ffc25f8db0e9b9aa4dc465935fae6dfd5c2a335ccea50","version":11},{"created_at":"2026-06-04T05:53:49Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.0→94.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.0 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"7d5b33bf0637d389608d25857cce8e1ed311d6c272bf02ef0e33b85804b29eab","version":10},{"created_at":"2026-06-04T04:55:51Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 59.0→94.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.0 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"b5451fbf5ac29c8d0c84e694945d307cb89ad78288d9cfabbc1e8b17c018ad20","version":9},{"created_at":"2026-06-04T04:55:51Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"a1238e0e38cef7d9c9f9bd18b0b85af26a9647bd1f6d1c1e63c9c4f56e5eb2ce","version":8}]}