{"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-g1-wm11pvra","versions":[{"created_at":"2026-06-04T05:50:10Z","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":"24025d64f44b2efa5386f087f65bfec6db01d5dabe4be6668f225c02fb76689e","version":4},{"created_at":"2026-06-04T04:59:12Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 37.9→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":"947a6122cee9207057ca5f76b1216ed33ed43f21aa9de1ca5a3c16037e6ebcbe","version":3},{"created_at":"2026-06-04T04:59:12Z","element_count":19,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"c4d2062e3277033965041a213670b46e4d0d99d221c81fc67d963187df9e5b3d","version":2}]}