Portal v0.6.2, og lint med portal lint

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GT37Z1Xtfd9pUuQtMTg6Yt

.gitea/workflows/deploy.yml

@@ -24,7 +24,7 @@ on:
       - .gitea/workflows/deploy.yml
 
 env:
-  PORTAL_RELEASE: v0.5.2
+  PORTAL_RELEASE: v0.6.2
   INSTANCE: klingenberg-portal
 
 jobs: