Fix: JSON-LD

Add a <script type="application/ld+json"> block on the homepage so agents and parsers can identify the site without scraping the full DOM.

<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "WebSite",
  "name": "Your Site Name",
  "url": "https://yourdomain.com/"
}
</script>