chore(repo): move current KarlDNS source to Gitea

Preserve the GitHub history and the newer deployed source from ct_134_karldns. Exclude runtime data, credentials, AppleDouble files and local backup copies. Make Gitea the canonical source for documentation, package metadata and project links.

karldns/web/layout.py

@@ -28,7 +28,10 @@ def _top_nav(label: str | None = None, links: SafeHtml | None = None) -> SafeHtm
     if label:
         account_html = f'<span class="navbar-text nav-label text-truncate">{escape(label)}</span>'
     if links is None:
-        links = trusted('<a class="nav-link px-0" href="/docs">API</a>')
+        links = trusted(
+            '<a class="nav-link px-0" href="/docs">API</a>'
+            '<a class="nav-link px-0" href="/llms.txt" type="text/plain">llms.txt</a>'
+        )
     theme_toggle = f"""
       <button type="button" class="theme-toggle" data-theme-toggle aria-label="Switch to dark theme">
         {_svg_icon("moon", "theme-icon theme-icon-moon")}
@@ -59,9 +62,9 @@ def _site_footer() -> SafeHtml:
           <div class="container footer-inner">
             <div class="footer-made">Made with <span aria-label="love">❤️</span> by karl</div>
             <nav class="footer-links" aria-label="Footer links">
-              <a class="footer-link" href="https://github.com/StasonJatham/karldns.de" rel="noopener">
+              <a class="footer-link" href="https://tea.karlcom.de/karl/karldns.de" rel="noopener">
                 {_svg_icon("github", "footer-icon")}
-                <span>GitHub</span>
+                <span>Gitea</span>
               </a>
               <a class="footer-link" href="https://karl.fail" rel="noopener">
                 {_svg_icon("blog", "footer-icon")}
@@ -100,6 +103,7 @@ def _page(
         <meta charset="utf-8">
         <meta name="viewport" content="width=device-width, initial-scale=1">
         <meta name="theme-color" content="#ffffff">
+        <link rel="describedby" href="/llms.txt" type="text/plain">
         <meta name="description" content="{attr(options.description)}">
         {_canonical_tag(options.canonical_url)}
         {_social_meta_tags(