fix: 修复报表合并结果无图标的问题

src/components/DialogWrap.vue

@@ -670,16 +670,19 @@ export default defineComponent({
           }
 
           if (files && files.length > 0) {
-            loadingData.value.file = {
+            const file_info = {
               file_name: files[0].file_name,
               file_url: files[0].file_url,
             };
 
-            answerFile.value = {
-              file_name: files[0].file_name,
-              file_url: files[0].file_url,
-            };
+            if(chat_type === 'excel'){
+              file_info.file_type = 'excel'
+            }
 
+            loadingData.value.file = file_info;
+            
+            answerFile.value = file_info;
+            
             addData(loadingData.value);
           } else {
             answerData.value += step_message ? getHTML(step_message) + "</br>" : message