{"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-95xfhnb5","versions":[{"created_at":"2026-06-04T05:50:58Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 99.3→99.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.3 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"acffba258fa672076e2e3019bfc53da8bc32321e336c442e06ddc0766d3fe13c","version":10},{"created_at":"2026-06-04T04:54:15Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 66.8→99.3 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.3 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"3f4f3c27716e1040a237f9b64c5d7c99ec9930b4c88fefc43906b31d3872e75c","version":9},{"created_at":"2026-06-04T04:54:15Z","element_count":32,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"74c1e49fb8c4b3305c73dd9cdd346ef489bed254dcc9809ca334f6ccfe4e6898","version":8}]}