Build containers run with network: host, so k8s DNS doesn't resolve.
Add extra_hosts entry pointing gitea-proxy.ci.svc.cluster.local to its
ClusterIP (10.43.88.7) in both the will-org and neuron-technologies runner
configs. Without this, actions/checkout fails because Gitea passes the
proxy hostname as GITHUB_SERVER_URL and the build container can't reach it.
Also update stale CF Access comments that no longer reflect the architecture.
Will Anderson
4dc687f2ae