One socket on :7700 carries hello, heartbeats both ways (5 s timeout), 5 Hz
state snapshots of envelopes, and idempotent commands. 'mark' is forwarded to
the recorder's control socket. --mock synthesises degrading state flagged as
mock in every envelope; without it a client gets hello and heartbeats only.
Peers outside loopback, RFC 1918 and the tailnet are refused. Deployed on the
car Orin as yukart-gw.service.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01DDwfd6Ki8UfG4hK6W5YpJz
Fails the build rather than letting a binary that cannot load reach the car,
and names the symbols responsible. Exit 2 is reserved for "could not check",
so a degraded run never reports success.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013kj58Jugkic783b8ZrtTVZ