{"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-nu2ta3v5","versions":[{"created_at":"2026-06-04T05:50:50Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 99.4→99.4 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.4 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"d34f4f20019d3dbec50d9e2d33bb88e3a70faa16d2f1bc390690151255746e8e","version":10},{"created_at":"2026-06-04T04:54:24Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 66.5→99.4 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.4 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"10d539a0cb21eaa3e086a9a31e0bed4e3917f49e658529f4b8d08c7ba3ff1298","version":9},{"created_at":"2026-06-04T04:54:24Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"5bfa267dd908508293f645c4f1379ee9fc146405fb4c6fd98a242fb915f32272","version":8}]}