{"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-2-677ygunj","versions":[{"created_at":"2026-06-04T05:51:14Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 98.9→99.4 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 99.4 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"9616548146ad90ccf38cba48edfc6d814ed04eadb0dfd23e81f37169541161e6","version":10},{"created_at":"2026-06-04T04:56:47Z","element_count":98,"note":"GA batch-improve 2026-06-04: 総合 50.6→98.9 (中庭ロの字・吹抜 ピアノ室 PV 雨水 天窓 / 適応度 98.9 (美 100 環 97 楽 100))","saved_by":"editor","sha256":"f9f9d1ad04957e92511d44187be304649871de73b8d8d50756ff7ee00353f510","version":9},{"created_at":"2026-06-04T04:56:47Z","element_count":51,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"e2dcfd1c00fb351e3320bbad5e9bd090d564c1e087d197c29cf12b301ccbd189","version":8}]}