{"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-53yttutq","versions":[{"created_at":"2026-06-04T05:51:19Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 98.7→98.7 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.7 (美 100 環 99 楽 100))","saved_by":"editor","sha256":"d480e25065124a764f52bd92abc03c8ec8c1ffb68d93b7d428a8a8a8cec88298","version":10},{"created_at":"2026-06-04T04:58:07Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 45.3→98.7 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.7 (美 100 環 99 楽 100))","saved_by":"editor","sha256":"d70bf1e4fcc21b7670fc5ef9884e09c3aaca2442cb756fdb685d7b823f6de1e1","version":9},{"created_at":"2026-06-04T04:58:06Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"27a07b104fad32966134f841c2a9b9bebcda7c1cefd9e0b22a0a24a97554db50","version":8}]}