{"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-ydcz6hst","versions":[{"created_at":"2026-06-04T05:50:24Z","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":"fa063489e48b6a257ccae261b7f0d5c6b16baed7e12240f1aa497fe4e805b585","version":10},{"created_at":"2026-06-04T04:53:40Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 69.2→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":"66142194b3734d5c5e2bcf32c70faad5ae28607661ebdabf600e6d8ee3f03869","version":9},{"created_at":"2026-06-04T04:53:40Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"36f20a81124088e587a7d26ed089442df6e2c34cef3f27a78daa5ed7dda7701a","version":8}]}