Add uncloseai.js button to all pages and update copyright to 2025

- Add uncloseai.js floating button to enable AI chat on all pages
- Update copyright year from 2022 to 2025 in permacomputer page

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

let-us-define-a-permacomputer/index.html

@@ -273,13 +273,14 @@ something, you are likely clicking a link!
 
 <footer>
   <center><a href="/software/">unturf. software</a></center>
-  <center>Russell Ballestrini | unturf. &copy; 2022</center>
+  <center>Russell Ballestrini | unturf. &copy; 2025</center>
 </footer>
 
   <!--
   <script src="https://dohliam.github.io/dropin-minimal-css/switcher.js" type="text/javascript"></script>
   -->
 
+<script src="https://uncloseai.com/uncloseai.js" type="module"></script>
 </body>
 </html>
 <!--