{"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-eversleyparklodgehou-ns0r6xti","versions":[{"created_at":"2026-06-16T18:27:27Z","element_count":84,"note":"5軸GA polish 43->96 by M5 (autonomous)","saved_by":"mcp","sha256":"ee16f8d364949f22eb09b3fd5608d75b5114185095001096179de097d3ba0ea5","version":3},{"created_at":"2026-06-16T18:19:05Z","element_count":105,"note":"loop3: 設計時延床 85.0㎡ を投入 (見積過大の根治)","saved_by":"mcp","sha256":"6e0f7db2c876cfd0409d2493996542716218869227e4c12c24a4b8b670f7665c","version":2},{"created_at":"2026-06-16T18:19:02Z","element_count":105,"note":"言葉から生成: LDK+main bedroom+2 kids rooms+bathroom+storage","saved_by":"mcp:create","sha256":"","version":1}]}