{"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-k7q6uvn5","versions":[{"created_at":"2026-06-04T05:51:09Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 99.0→99.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.0 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"61919a1974f5c12364de144a6f7250551a7e0f2db6f7dc045987696635338ea6","version":4},{"created_at":"2026-06-04T04:57:49Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 45.9→99.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.0 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"299e892dbf4fc315e2c73e7205e41cc5ce01de3fb3f22e8fa2058b53b66faad6","version":3},{"created_at":"2026-06-04T04:57:48Z","element_count":35,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"cbcb6073eda54df05f663494a70837e64c38714cb7882f8aaa5d510831a0fd90","version":2}]}