/** Service for group operations. */
    @Resource
    private GroupService groupService;

    /** Pager for group list pagination. */
    @Resource
    private GroupPager groupPager;

    // ===================================================================================
    //                                                                               Hook

     */
    @Execute
    public JsonResponse<ApiResult> settings(final SearchBody body) {
        validateApi(body, messages -> {});
        final GroupPager pager = copyBeanToNewBean(body, GroupPager.class);
        final List<Group> list = groupService.getGroupList(pager);
        return asJson(