{"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-di8tiady","versions":[{"created_at":"2026-06-04T05:50:50Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 99.4→99.4 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.4 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"d34f4f20019d3dbec50d9e2d33bb88e3a70faa16d2f1bc390690151255746e8e","version":10},{"created_at":"2026-06-04T04:54:23Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 66.5→99.4 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.4 (美 99 環 100 楽 100))","saved_by":"editor","sha256":"f99f05158593ba073f14fafa2cb37d071f04eb4b3ea263f5894e3fbe1101f623","version":9},{"created_at":"2026-06-04T04:54:23Z","element_count":45,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"2490728397916b7ded6e431a335dbd0605390c0005a08d3a21fc92733dc90d5b","version":8}]}