cc-connect-relay-setup

Stand up a self-hosted iroh-relay on a user-supplied Linux server so cc-connect can route gossip + iroh-blobs through their own infrastructure instead of n0's public relays. Walks through SSH access, TLS cert issuance via certbot, nginx reverse-proxy, iroh-relay binary install, and a systemd unit. Use when the user asks to "self-host the relay", "set up my own relay", "use my own server for cc-connect", or anything…