{"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-6dlwc4a3","versions":[{"created_at":"2026-06-04T05:50:05Z","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":"655160e76d803afcd4b75a796fad8aeff14610b25f55e07244ae7f8b6bab3eed","version":10},{"created_at":"2026-06-04T04:53:35Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 69.9→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":"00b9e7892a387c56c482bd71889df125ba6451ee0761fbdb730dd22e694bf5cd","version":9},{"created_at":"2026-06-04T04:53:35Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"b4b4f91089ee304cb0723e48af3da5cef7ea189d896b63249fe91acd41176bb1","version":8}]}