{"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-55iy46jg","versions":[{"created_at":"2026-06-04T16:59:54Z","element_count":77,"note":"polish: batch-improve-100 2026-06-04 (92.6->96.8)","saved_by":"editor","sha256":"9c650d984be01e653cfc73e5991f333b83d1e76ff95807c09b293a72ef601c0f","version":11},{"created_at":"2026-06-04T05:55:41Z","element_count":70,"note":"GA diverse re-design 2026-06-04: 総合 92.6→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":"c81a8905e8f55fa444a7137e3f02acfb974c2fb246aa58688b0b02eace2e6ab7","version":10},{"created_at":"2026-06-04T04:55:02Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 63.6→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":"7e0ad416d8145079a8cd1896c90c683633f596e7416e37df5dd44c7fac106732","version":9},{"created_at":"2026-06-04T04:55:02Z","element_count":28,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"22354c1c048040d5a72abdec87f92b850a07bd43430a841918a26920215a41bf","version":8}]}