{"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-r17pr74w","versions":[{"created_at":"2026-06-04T05:51:43Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 97.9→97.9 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 97.9 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"2428a5bb3bf6b81bf7f84aa3f422a5a2399577eec005ca24da494fd0f8c6a4a7","version":10},{"created_at":"2026-06-04T04:54:48Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 65.2→97.9 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 97.9 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"a8bbfffb16704baf2686c5dc75716d6ee5500f572313f84267c2f5c7b30c3dac","version":9},{"created_at":"2026-06-04T04:54:48Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"3333ffe61bf9e34c680622be3030b922aaaf4f14c31a2b52766f9376eacf6e75","version":8}]}