{"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-cqfo0gs1","versions":[{"created_at":"2026-06-04T05:55:42Z","element_count":98,"note":"GA diverse re-design 2026-06-04: 総合 92.6→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":"57d5bc06b740432995d6058d100ae7efdd58eb7de16dab15ff198b5d7cb12ecb","version":10},{"created_at":"2026-06-04T04:53:45Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 69.0→92.6 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 92.6 (美 100 環 100 楽 100))","saved_by":"editor","sha256":"6d544ce42993111f7caa7b5f4ec28d5391b0ce39dcee52b8f7eee49b8670fd2c","version":9},{"created_at":"2026-06-04T04:53:45Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"37577d1939f221dd9dae74b28eadee0471175fdec5ce360beebdd18c3d1cc3e8","version":8}]}