{"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-iizyzqs2","versions":[{"created_at":"2026-06-04T05:51:13Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 99.0→99.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.0 (美 100 環 96 楽 100))","saved_by":"editor","sha256":"a6a9d1faecb9aedae755aee46e361c87bc4a18e11a598fb861d40eee3d6a580b","version":10},{"created_at":"2026-06-04T04:58:34Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 42.8→99.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.0 (美 100 環 96 楽 100))","saved_by":"editor","sha256":"665a79723bb68044d9f0679094b04119a5dfeea9dbf753ce4ace472e31e3ef3d","version":9},{"created_at":"2026-06-04T04:58:34Z","element_count":29,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"be5ed4cb63b236e308de5d916fd26bf89bebb36fc5008b2d5da9e7da2c8f374f","version":8}]}