* @return formatted file size string (e.g., "1.5M", "2.3G", "512K")
     */
    public static String formatFileSize(final long value) {
        double target = value;
        String unit = ""; // TODO l10n?
        String format = "0.#";
        if (value < 1024) {
            format = "0";
        } else if (value < 1024L * 1024L) {
            target /= 1024;
            unit = "K";

<aside class="main-sidebar sidebar-dark-primary">
	<la:link href="/admin/" styleClass="brand-link text-center">
		<span class="brand-text">
		<c:if test="${empty param.brandName or empty param.logoPath}"><img src="${fe:url('/images/logo-head.png')}" alt="<la:message key="labels.header_brand_name" />" /></c:if
		><c:if test="${not empty param.brandName and not empty param.logoPath}"><img src="${fe:url(param.logoPath)}" alt="${f:h(param.brandName)}" /></c:if>
		</span>

                writeJsonResponse(response, HttpServletResponse.SC_BAD_REQUEST,
                        createErrorResponse("Message is too long (max " + maxMessageLength + " characters)"));
                return;
            }

            final String userId = getUserId(request);

            // Set LLM type name as Access Type for search log

            zos.putNextEntry(jsEntry);
            zos.write("console.log('test');".getBytes());
            zos.closeEntry();

            // Images
            ZipEntry imgEntry = new ZipEntry("images/logo.png");
            zos.putNextEntry(imgEntry);
            zos.write("fake png data".getBytes());
            zos.closeEntry();
        }
    }

        // created
        final Date now = systemHelper.getCurrentTime();
        putResultDataBody(dataMap, fessConfig.getIndexFieldCreated(), now);
        // TODO anchor
        putResultDataBody(dataMap, fessConfig.getIndexFieldAnchor(), StringUtil.EMPTY);
        // mimetype
        putResultDataBody(dataMap, fessConfig.getIndexFieldMimetype(), mimeType);

     * @param document the parsed HTML document
     * @return the thumbnail URL if found, null otherwise
     */
    protected String getThumbnailUrl(final ResponseData responseData, final Document document) {
        // TODO PageMap
        try {
            // meta thumbnail
            final Node thumbnailNode = getXPathAPI().selectSingleNode(document, META_NAME_THUMBNAIL_CONTENT);
            if (thumbnailNode != null) {

        }));
        if (!form.hasConditionQuery()) {
            if (StringUtil.isNotBlank(form.q)) {
                form.as.put("q", new String[] { form.q });
            } else {
                // TODO set default?
            }
        }
        return asHtml(virtualHost(path_AdvanceJsp)).renderWith(data -> {
            buildInitParams();

        if (elevateWordPager.id != null) {
            cb.query().docMeta().setId_Equal(elevateWordPager.id);
        }
        // TODO Long, Integer, String supported only.

        // setup condition
        cb.query().addOrderBy_SuggestWord_Asc();

        // search

    }

    /**
     * Imports elevate words from a CSV file.

     * @param hook The error hook.
     */
    private static void validateProtwordsString(final FessBaseAction action, final String values, final String propertyName,
            final VaErrorHook hook) {
        // TODO validation
    }

    // ===================================================================================
    //                                                                              JSP

    }

    /**
     * Executes a chat request with concurrency control via Semaphore.
     *
     * @param request the chat request
     * @return the chat response
     * @throws LlmException if too many concurrent requests or interrupted
     */
    protected LlmChatResponse chatWithConcurrencyControl(final LlmChatRequest request) {
        if (concurrencyLimiter == null) {
            return chat(request);
        }