if (logger.isDebugEnabled()) {
            logger.debug("MarkdownRenderer initialized with commonmark and OWASP sanitizer");
        }
    }

    /**
     * Renders markdown text to sanitized HTML.
     *
     * @param markdown the markdown text to render
     * @return sanitized HTML string
     */
    public String render(final String markdown) {
        if (markdown == null || markdown.isEmpty()) {

        }
        // Remove control characters and limit length
        String sanitized = input.replaceAll("[\\x00-\\x1f]", "");
        if (sanitized.length() > 1000) {
            sanitized = sanitized.substring(0, 997) + "...";
        }
        return sanitized;
    }

    /**
     * Validates that a value is within the specified range
     *
     * @param value the value to check
     * @param min minimum value (inclusive)

                }
                if (sanitized.length() > 0) {
                    sanitized.append('/');
                }
                sanitized.append(component);
            }

            final Path resolved = Paths.get(exportPath, sanitized.toString()).normalize();
            final Path baseDir = Paths.get(exportPath).normalize();

        // Test long string truncation
        String longString = "a".repeat(1100);
        String sanitized = InputValidator.sanitizeForLogging(longString);
        assertEquals(1000, sanitized.length());
        assertTrue(sanitized.endsWith("..."));
    }

    @Test
    @DisplayName("Test require non-empty validation")
    void testRequireNonEmpty() {

        return redirect(getClass()); // no-op
    }

    /**
     * Sanitizes a filename by removing path traversal sequences and whitespace.
     *
     * @param filename the filename to sanitize
     * @return the sanitized filename
     */
    public static String sanitizeFilename(final String filename) {

        // Test that custom sessionId is sanitized
        Crawler.Options options = new Crawler.Options();
        options.sessionId = "test-session-123";

        // Simulate what process() does - sanitize sessionId
        if (options.sessionId != null) {
            options.sessionId = options.sessionId.replaceAll("-", "_");
        }

        // Check that sessionId was sanitized (hyphens replaced with underscores)

     */
    function scrollToBottom() {
        elements.chatMessages.scrollTop(elements.chatMessages[0].scrollHeight);
    }

    /**
     * Render Markdown text to sanitized HTML.
     * Policy is aligned with server-side MarkdownRenderer (OWASP sanitizer).
     */
    var markdownDomPurifyInitialized = false;
    var markdownSanitizeConfig = {
        ALLOWED_TAGS: ['h1','h2','h3','h4','h5','h6',

            }
            sb.append(c);
        }
        return sb.toString();
    }

    /**
     * Renders markdown text to sanitized HTML.
     *
     * @param markdown the markdown text
     * @return sanitized HTML
     */
    protected String renderMarkdownToHtml(final String markdown) {
        if (markdownRenderer == null || !markdownRenderer.isInitialized()) {

e=e.toString()))throw S("dirty is not a string, aborting")}if(!o.isSupported)return e;if(Fe||Tt(t),o.removed=[],"string"==typeof e&&(qe=!1),qe){if(e.nodeName){const t=ft(e.nodeName);if(!Ne[t]||Oe[t])throw S("root node is forbidden and cannot be sanitized in-place")}}else if(e instanceof D)n=bt("\x3c!----\x3e"),r=n.ownerDocument.importNode(e,!0),r.nodeType===J&&"BODY"===r.nodeName||"HTML"===r.nodeName?n=r:n.appendChild(r);else{if(!Be&&!Ue&&!Pe&&-1===e.indexOf("<"))return le&&We?le.createHTML(e):e...

      return (startTime == 0L) ? 1L : startTime;
    }
  }

  /**
   * Returns the remaining nanos until the given timeout, or 0L if the timeout has already elapsed.
   * Caller must have previously sanitized timeoutNanos using toSafeNanos.
   */
  private static long remainingNanos(long startTime, long timeoutNanos) {
    // assert timeoutNanos == 0L || startTime != 0L;