feat: add HTTP→HTTPS redirect to Gateway API services (#145)

Add port 80 HTTP listener and redirect HTTPRoute to artifactapi,
cattle-system (rancher), litellm, paperclip, and puppetboard — restoring
the redirect behaviour that existed on the previous nginx/traefik Ingress
resources.

Reviewed-on: #145

apps/base/paperclip/gateway.yaml

@@ -15,6 +15,13 @@ metadata:
 spec:
   gatewayClassName: traefik-internal
   listeners:
+    - allowedRoutes:
+        namespaces:
+          from: Same
+      hostname: paperclip.k8s.syd1.au.unkin.net
+      name: http
+      port: 80
+      protocol: HTTP
     - allowedRoutes:
         namespaces:
           from: Same