{"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-55upd00r","versions":[{"created_at":"2026-06-04T05:51:24Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 98.5→98.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.5 (美 99 環 99 楽 100))","saved_by":"editor","sha256":"18655440fe7a6802a503dc2780459faa8dbe5824a3fb1c0e05c759bbc95d15b7","version":10},{"created_at":"2026-06-04T04:54:34Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 65.9→98.5 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 98.5 (美 99 環 99 楽 100))","saved_by":"editor","sha256":"d7270d5e1547458e6c62e55288cc1a8577728f11834470cc5745dbc6dc1d6123","version":9},{"created_at":"2026-06-04T04:54:34Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"0baddad81fad0307aca4e4f820ffa061a37361fbaa5e664956c0afae2121a9fe","version":8}]}