{"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-ggv7k2si","versions":[{"created_at":"2026-06-04T05:50:33Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 99.5→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"4d0ea3e16b0bd46142baac726886817cfe6d14e4d3766d22e92278ae968c32ff","version":10},{"created_at":"2026-06-04T04:59:18Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 37.3→99.5 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.5 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"5421567594fcb11064cb40bce2d4b5c5c609e9b11c5756bc93e4fb3185af5f60","version":9},{"created_at":"2026-06-04T04:59:18Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"ec419a82cd70bff35f4c26b060e87845d1e231893a326803e5b75cb341370e38","version":8}]}