act_runner cannot inject custom HTTP headers, so CF Access blocks its
unauthenticated calls to git.neuralplatform.ai. Add a gitea-proxy
deployment (nginx:alpine) in the ci namespace that injects the CF
Access service-token headers and proxies to https://git.neuralplatform.ai.
Both runner secrets now point GITEA_INSTANCE_URL at the in-cluster proxy
(http://gitea-proxy.ci.svc.cluster.local:3000). Build containers still
clone via SSH through git-ssh-init.sh — unaffected.
extra_hosts had stale IP 10.43.1.53 (Gitea is now at 10.43.15.98).
force_pull: true ensures runners always use the latest ci-base image.
Applies to both gitea-runner and neuron-technologies-runner.
The containerd socket is mounted from the host at /run/k3s/containerd/containerd.sock
to /var/run/docker.sock inside the container, but act_runner config was pointing to
the host path directly. Fixes CrashLoopBackOff on all runner pods.
Also codifies both deployments (will org + neuron-technologies org) as git-managed
manifests so Argo CD owns them going forward.