{"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-tv0259ov","versions":[{"created_at":"2026-06-04T17:00:28Z","element_count":81,"note":"polish: batch-improve-100 2026-06-04 (94.1->99.3)","saved_by":"editor","sha256":"08365635eff0c2057c322ee18b80d44216096c1d531a76888ab600b402161233","version":11},{"created_at":"2026-06-04T05:53:45Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.1→94.1 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.1 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"e3a9bee29ad705420a7a2f75a350ebbcb6a6c649d7d174c2890fedf80dcc9278","version":10},{"created_at":"2026-06-04T04:59:07Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 38.3→94.1 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.1 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"836e7a3c062ca21ffe2903b766d50c84b6f770ad0c2b5649f41f5b75e9865177","version":9},{"created_at":"2026-06-04T04:59:07Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"96a3ae2842aa4010055d3acbdbf86d10cf660b5f1f5db287b54916386d358624","version":8}]}