chore: test and fix bugs of user group

src/modules/users/users.controller.ts

@@ -41,9 +41,16 @@ export class UsersController {
   @AuthGuards()
   @Roles(RoleEnum.ADMIN)
   @ApiOperation({ summary: "Create user group" })
-  @HttpCode(HttpStatus.OK)
+  @HttpCode(HttpStatus.CREATED)
   @Post("user-group")
   createUserGroup(@Body() createDto: CreateUserGroupDto) {
     return this.usersService.createUserGroup(createDto);
   }
+
+  @ApiOperation({ summary: "get all user group" })
+  @HttpCode(HttpStatus.OK)
+  @Get("user-group")
+  UserGroups() {
+    return this.usersService.getUserGroup();
+  }
 }