* Deletes all suggest words from the suggest index.
     *
     * @return HTML response redirecting to the index page
     */
    @Execute
    @Secured({ ROLE })
    public HtmlResponse deleteAllWords() {
        if (!suggestHelper.deleteAllWords()) {
            throwValidationError(messages -> messages.addErrorsFailedToDeleteDocInAdmin(GLOBAL),
                    () -> asHtml(path_AdminSuggest_AdminSuggestJsp).useForm(SuggestForm.class));

     *
     * @return JSON response indicating success or failure
     */
    // DELETE /api/admin/suggest/all
    @Execute
    public JsonResponse<ApiResult> delete$all() {
        if (!suggestHelper.deleteAllWords()) {
            throwValidationErrorApi(messages -> messages.addErrorsFailedToDeleteDocInAdmin(GLOBAL));
        }
        return asJson(new ApiResult.ApiResponse().status(ApiResult.Status.OK).result());
    }