{"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-lp6al3ne","versions":[{"created_at":"2026-06-04T16:59:23Z","element_count":63,"note":"polish: batch-improve-100 2026-06-04 (92.6->98.2)","saved_by":"editor","sha256":"e2379b88691ff89ce4d5fc6324a489498f7e00ca5a7112867815ff204b697d84","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":"9cbc65cc687a409e8551ffc931ceaea2e330d5c36c90d2cac2954dbd162cceda","version":10},{"created_at":"2026-06-04T04:52:46Z","element_count":70,"note":"GA batch-improve 2026-06-04: 総合 74.4→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":"7c8df913a1803737266a18cbd08582b97fbc16b702eb06860defd74225880a27","version":9},{"created_at":"2026-06-04T04:52:46Z","element_count":31,"note":"snapshot: batch-improve 2026-06-04 改善前の旧設計 (復元用)","saved_by":"editor","sha256":"ffaf88dd7b1a8bec3ff6895d7d20521b0b1743a289abdf01848377c17198dcd7","version":8}]}