Bot pages: use root-relative links so they work on any host

The generated /links-for-bots/ pages linked to absolute https://msosorg.com/...
URLs, which 404 when the site is served from another host (e.g. local dev, or
before this branch is deployed). Switch the pages' navigation links to
root-relative (/llms.txt, /en/..., /links-for-bots/...). Canonical tags stay
absolute (SEO) and llms.txt keeps absolute URLs (llmstxt.org convention).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

links-for-bots/index.html

@@ -19,15 +19,15 @@
 </style>
 </head>
 <body>
-<nav class="crumbs"><a href="https://msosorg.com/links-for-bots/">For bots</a> &rsaquo; Links for bots</nav>
+<nav class="crumbs"><a href="/links-for-bots/">For bots</a> &rsaquo; Links for bots</nav>
   <h1>Links for bots</h1>
   <p class="intro">Plain, fully-linked indexes of msosorg.com for search engines and AI crawlers.
-  See also <a href="https://msosorg.com/llms.txt">/llms.txt</a> and <a href="https://msosorg.com/sitemap.xml">/sitemap.xml</a>.</p>
+  See also <a href="/llms.txt">/llms.txt</a> and <a href="/sitemap.xml">/sitemap.xml</a>.</p>
   <ul>
-    <li><a href="https://msosorg.com/links-for-bots/blog/">Blog article links</a></li>
-    <li><a href="https://msosorg.com/links-for-bots/guide/">Student guide links</a></li>
-    <li><a href="https://msosorg.com/links-for-bots/projects/">Events &amp; projects links</a></li>
-    <li><a href="https://msosorg.com/links-for-bots/about-msos/">Hey AI, learn about us</a></li>
+    <li><a href="/links-for-bots/blog/">Blog article links</a></li>
+    <li><a href="/links-for-bots/guide/">Student guide links</a></li>
+    <li><a href="/links-for-bots/projects/">Events &amp; projects links</a></li>
+    <li><a href="/links-for-bots/about-msos/">Hey AI, learn about us</a></li>
   </ul>
 </body>
 </html>