Add Arc testnet node (Circle L1): arc-execution EL + arc-consensus CL
Generated compose for the new `arc` client. Single self-contained stack:
3 init containers (snapshot download ~84GB, CL key init, socket prep) +
EL (reth-fork, http RPC behind traefik /arc-testnet, dshackle upstream
chain: arc-testnet) + CL (follows relay endpoints, drives EL over shared
IPC sockets). Images pulled anonymously from Circle's public Cloudsmith
registry at 0.7.2. Positional subcommands pinned in entrypoint so
process_yaml's command-sorting can't reorder them.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude Agent
84d119219c