{"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-xo0rbdoz","versions":[{"created_at":"2026-06-04T05:53:46Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 94.0→94.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.0 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"475881c986c27ccbb4578dba8c1b51fdec0c403957581809b4ad3e2e7fa15bfc","version":10},{"created_at":"2026-06-04T04:53:28Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 70.1→94.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 94.0 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"6848d3b10bf3a834761a5eb0d8108c384e40d2261170c5c2ffe6ca8ee30d74d8","version":9},{"created_at":"2026-06-04T04:53:28Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"c6cd25189886e0b1d51e0f74baa0c0c33edec6ffb36ff9cbcf73f4478273b78c","version":8}]}