- Updated 30 additional files to use shared includes/nav.php
- Fixed references to old navbar.php and header.php nav includes
- All 52 pages now use single shared navigation
- Hide Apache version (ServerTokens Prod)
- Add Permissions-Policy header
- Remove deprecated X-XSS-Protection
- Consolidate security headers to .htaccess only (remove duplicates from PHP)
- Deploy free tools: robots-analyzer, data-converter
- Deploy tools announcement blog post
- Update sitemap with new tools and blog post