Self-hosted Kura cache nodes with control-plane enrollment

You can now deploy self-hosted Kura cache nodes in your own infrastructure, authorize them through Tuist’s control plane, and bridge them into the same mutually authenticated mesh as your Tuist-managed nodes. The node generates its own private key, enrolls with a per-account CA managed by Tuist, and registers itself via heartbeat so the CLI routes cache traffic to it automatically. This is useful for locality, data residency, or keeping cache capacity next to your runners, while writes still replicate into the managed mesh and the node warms from that cache when it joins.