fix: 调整变量类型

- 将id相关类型由number修改为string，符合graphQL规范

app/pages/support/documents.vue

@@ -30,8 +30,8 @@
   ];
 
   const filters = reactive({
-    selectedType: null as number | null,
-    selectedProduct: null as number | null,
+    selectedType: null as string | null,
+    selectedProduct: null as string | null,
     keyword: '',
   });