Migrate bnkops.com deployment to v2 + archive site

- Migrate Gitea data from bnkopschangemaker to changemaker.lite v2
- Configure Pangolin/Newt tunnel with 17 resources (replaces Cloudflare)
- Add archive.bnkops.com with 9 preserved documentation sites
- Move bnkops landing page into MkDocs build system (lander.html)
- Serve root domain from mkdocs/site/ built output
- Add nginx routing for archive.bnkops.com and gitea.bnkops.com
- Strip V2 technical docs from nav (to be deployed separately on cmlite.org)
- Update all landing page links: changemaker → cmlite.org, repo → archive.bnkops.com
- Add archive insert system (JS/CSS injection for contextual callouts)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

nginx/conf.d/services.conf.template

@@ -1,7 +1,22 @@
+# Archive — preserved documentation from all versions
+server {
+    listen 80;
+    server_name archive.${DOMAIN};
+
+    location / {
+        set $upstream_archive http://archive-bnkops:80;
+        proxy_pass $upstream_archive;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+    }
+}
+
 # Gitea — allows iframe embedding from admin (app.${DOMAIN})
 server {
     listen 80;
-    server_name git.${DOMAIN};
+    server_name gitea.${DOMAIN};
     add_header Content-Security-Policy "frame-ancestors 'self' app.${DOMAIN}" always;
 
     # Increase max body size for large git pushes (2GB)