Move ollama LAN NodePort to port 80

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

argocd/manifests/ollama/service-nodeport.yaml

@@ -13,4 +13,4 @@ spec:
     - name: http
       port: 11434
       targetPort: 11434
-      nodePort: 30434
+      nodePort: 80

nixos/ringtail/configuration.nix

@@ -130,6 +130,8 @@ in
       "--disable=metrics-server"
       "--write-kubeconfig-mode=644"
       "--tls-san=ringtail.tail8d86e.ts.net"
+      # Allow ollama NodePort on port 80 for non-tailnet LAN devices
+      "--service-node-port-range=80-32767"
     ];
     containerdConfigTemplate = ''
       {{ template "base" . }}