/** Search/filter parameter for duplicate host version number. */
    public String versionNo;

    /**
     * Creates a new DuplicateHostPager with default values.
     * Initializes pagination settings and clears all search parameters.
     */
    public DuplicateHostPager() {
        // Default constructor with explicit documentation
    }

    /**
     * Clears all paging state and search/filter parameters.

    //                                                                           =========
    @Resource
    private DuplicateHostService duplicateHostService;
    @Resource
    private DuplicateHostPager duplicateHostPager;

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

            cb.paging(duplicateHostPager.getPageSize(), duplicateHostPager.getCurrentPageNumber());
            setupListCondition(cb, duplicateHostPager);
        });

        // update pager
        BeanUtil.copyBeanToBean(duplicateHostList, duplicateHostPager, option -> option.include(Constants.PAGER_CONVERSION_RULE));
        duplicateHostPager.setPageNumberList(duplicateHostList.pageRange(op -> {

     */
    @Execute
    public JsonResponse<ApiResult> settings(final SearchBody body) {
        validateApi(body, messages -> {});
        final DuplicateHostPager pager = copyBeanToNewBean(body, DuplicateHostPager.class);
        final List<DuplicateHost> list = duplicateHostService.getDuplicateHostList(pager);
        return asJson(