{"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-g3-zadeqk06","versions":[{"created_at":"2026-06-04T17:00:14Z","element_count":62,"note":"polish: batch-improve-100 2026-06-04 (92.4->100.0)","saved_by":"editor","sha256":"66b16dfd36bc825aa7909ef01c290f1db6064cd652d65ad556205b463d8bab97","version":5},{"created_at":"2026-06-04T05:53:50Z","element_count":55,"note":"GA diverse re-design 2026-06-04: 総合 93.9→92.4 (総2階(箱)・吹抜 縁側 ピアノ室 PV 雨水 天窓 南面サンルーム / 適応度 92.4 (美 95 環 100 楽 91))","saved_by":"editor","sha256":"1558cc17728fbef969d19005c3d677e8cc0f9366f822b209102666d8ba8acae2","version":4},{"created_at":"2026-06-04T04:55:55Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 58.7→93.9 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 93.9 (美 100 環 96 楽 100))","saved_by":"editor","sha256":"de7040f035edb34c24854cc17f4155a0da8652aba3d55b700c021206971dfd44","version":3},{"created_at":"2026-06-04T04:55:55Z","element_count":24,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"a73ecb16d202d5462aa002204c66affeea1d207df4c17bfa35dcd4cb20edf228","version":2}]}