feat: 添加了获取单个用户信息的接口

src/main/java/org/mmga/clubs/controller/UserController.java

@@ -90,5 +90,10 @@ public class UserController {
     public void getAvatar(HttpServletResponse response, @Schema(description = "头像文件SHA1值") @PathVariable("sha1") String sha1){
         service.getAvatar(response, sha1);
     }
+    @GetMapping("/info/{id}")
+    @Operation(description = "获取简略用户信息")
+    public BaseResponse<User> getSimpleInfo(@PathVariable("id") int userId){
+        return service.getUserInfo(userId);
+    }
 }