fix:type error

Author: Taois

dashboard/src/components/SearchResults.vue

@@ -116,7 +116,7 @@ const props = defineProps({
   },
   // 扩展参数，用于T4接口调用
   extend: {
-    type: String,
+    type: [Object, String],
     default: ''
   },
   // API URL，用于直接调用站点API