{"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-de4ygj1s","versions":[{"created_at":"2026-06-04T05:51:11Z","element_count":99,"note":"GA diverse re-design 2026-06-04: 総合 99.0→99.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.0 (美 100 環 96 楽 100))","saved_by":"editor","sha256":"1a5d3d773bafb90c5fcb2eaa7a4fc4e64d3465b007c235f5a645ccefc39f7211","version":10},{"created_at":"2026-06-04T04:53:17Z","element_count":99,"note":"GA batch-improve 2026-06-04: 総合 71.0→99.0 (中庭ロの字・吹抜 縁側 ピアノ室 PV 雨水 天窓 / 適応度 99.0 (美 100 環 96 楽 100))","saved_by":"editor","sha256":"9771112997ad90ae64dfe91780ceb91e07f57197149ad8a1b0c45100b68cf911","version":9},{"created_at":"2026-06-04T04:53:16Z","element_count":31,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"1a79e5343d0ceab0143e48fb52db8dad3ce61cc31c24199b226d2a8838a9c855","version":8}]}