feat(user): 添加查询用户审核信息接口

- 新增 `GET /api/system/user/audit/{userId}` 接口
- 实现根据用户ID查询用户审核状态和拒绝原因
- 接口仅允许拥有 'sys:auth:user' 权限的用户访问
- 当用户不存在时，返回相应失败提示
- 返回数据包含 userId、auditStatus 和 rejectReason 信息

src/main/java/com/gxwebsoft/common/system/controller/UserController.java

@@ -304,6 +304,21 @@ public class UserController extends BaseController {
         return fail("修改失败");
     }
 
+    @PreAuthorize("hasAuthority('sys:auth:user')")
+    @Operation(summary = "查询用户审核信息")
+    @GetMapping("/audit/{userId}")
+    public ApiResult<Map<String, Object>> getAuditInfo(@PathVariable("userId") Integer userId) {
+        User user = userService.getByIdRel(userId);
+        if (user == null) {
+            return fail("用户不存在",null);
+        }
+        Map<String, Object> result = new HashMap<>();
+        result.put("userId", user.getUserId());
+        result.put("auditStatus", user.getAuditStatus());
+        result.put("rejectReason", user.getRejectReason());
+        return success(result);
+    }
+
     @PreAuthorize("hasAuthority('sys:user:update')")
     @OperationLog
     @Operation(summary = "审核用户注册(通过/拒绝)")