Migrate all service modules from nginx-ingress to Traefik

- Remove nginx-specific ingress variables (use_proxy_protocol, proxy_timeout, additional_configuration_snippet)
- Update ingress annotations to use Traefik middleware CRDs
- Delete nginx-ingress module (replaced by traefik)
- Add new traefik middleware.tf for shared middleware definitions
- Update service modules to work with new ingress_factory interface

modules/kubernetes/monitoring/grafana_chart_values.yaml

@@ -6,14 +6,10 @@ persistence:
   existingClaim: "grafana-pvc"
 ingress:
   enabled: "true"
+  ingressClassName: "traefik"
   annotations:
-    kubernetes.io/ingress.class: nginx
-    # nginx.ingress.kubernetes.io/auth-url: "https://oauth2.viktorbarzin.me/oauth2/auth"
-    # nginx.ingress.kubernetes.io/auth-signin: "https://oauth2.viktorbarzin.me/oauth2/start?rd=/redirect/$http_host$escaped_request_uri"
-    nginx.ingress.kubernetes.io/auth-url: "http://ak-outpost-authentik-embedded-outpost.authentik.svc.cluster.local:9000/outpost.goauthentik.io/auth/nginx"
-    nginx.ingress.kubernetes.io/auth-signin: "https://authentik.viktorbarzin.me/outpost.goauthentik.io/start?rd=$scheme%3A%2F%2F$host$escaped_request_uri"
-    nginx.ingress.kubernetes.io/auth-response-headers: "Set-Cookie,X-authentik-username,X-authentik-groups,X-authentik-email,X-authentik-name,X-authentik-uid"
-    nginx.ingress.kubernetes.io/auth-snippet: "proxy_set_header X-Forwarded-Host $http_host;"
+    traefik.ingress.kubernetes.io/router.middlewares: "traefik-rate-limit@kubernetescrd,traefik-csp-headers@kubernetescrd,traefik-crowdsec@kubernetescrd,traefik-authentik-forward-auth@kubernetescrd"
+    traefik.ingress.kubernetes.io/router.entrypoints: "websecure"
   tls:
     - secretName: "tls-secret"
       hosts: