refactor: 上传文件后返回id及缩略图 (#137)

Closes #132

continew-webapi/src/main/java/top/continew/admin/controller/common/CommonController.java

@@ -69,7 +69,12 @@ public class CommonController {
     public FileUploadResp upload(@NotNull(message = "文件不能为空") MultipartFile file) {
         ValidationUtils.throwIf(file::isEmpty, "文件不能为空");
         FileInfo fileInfo = fileService.upload(file);
-        return FileUploadResp.builder().url(fileInfo.getUrl()).build();
+        return FileUploadResp.builder()
+            .id(fileInfo.getId())
+            .url(fileInfo.getUrl())
+            .thUrl(fileInfo.getThUrl())
+            .metadata(fileInfo.getMetadata())
+            .build();
     }
 
     @Operation(summary = "查询部门树", description = "查询树结构的部门列表")