## Summary
- Replace `Ingress` (nginx) with `Gateway` + `HTTPRoute` using `traefik-internal` GatewayClass
- TLS terminated at the Gateway listener; cert-manager provisions the certificate via `vault-issuer`
- external-dns annotations moved to the Gateway
## Test plan
- [ ] ArgoCD syncs the paperclip app cleanly
- [ ] cert-manager issues the `paperclip-tls` certificate
- [ ] external-dns creates the DNS record
- [ ] `https://paperclip.k8s.syd1.au.unkin.net` is reachable
Reviewed-on: #133
Mount the vault-ca-cert secret and set NODE_EXTRA_CA_CERTS so Node.js
trusts the internal CA chain when making outbound TLS connections.
Reviewed-on: #108
The privateHostnameGuard middleware blocks requests where the Host header
is not in the allowlist. Kubelet httpGet probes use the pod IP as the
Host header, which is never in the allowlist. Setting Host: localhost
ensures probes are always permitted.
Reviewed-on: #107
Adds base manifests and au-syd1 overlay for Paperclip (AI agent
orchestration platform), following the litellm deployment pattern.
Updates aitooling ApplicationSet to include the paperclip path.
Closes#99
Reviewed-on: #100