fix: PageHead header alignment, analytics proxy, and infra improvements (#64)

🤖 Pull request created from `various-fixes` containing PageHead
breadcrumbs and navigation alignment fixes, Umami analytics proxy, and
infrastructure updates.

services/docs/hugo.yaml

@@ -48,7 +48,9 @@ params:
   # Analytics configuration
   analytics:
     umami:
-      serverURL: 'https://umami.ermnvldmr.com'
+      serverURL: '/beacon'
+      scriptName: 'beacon.js'
+      hostURL: '/beacon'
       websiteID: 'fbdadf3f-3484-4186-a2c2-cedcf76cf44f'
       domains: 'docs.ermnvldmr.com'
       doNotTrack: 'true'