theta-suite's setup.sh installs the committed theta-agent-linux-amd64
rather than building from source, so a stale binary means the fix in this
repo never reaches the host.
The v1.5.0 binary predated join-key support: setup.sh would write a
join_key into agent.yml that the running agent did not understand, and it
would have looped on "close 4001: Unauthorized" -- the same trap the
v1.3.0 heartbeat fix hit.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
The prebuilt theta-agent-linux-amd64 was built before the v1.3.0 heartbeat_ack
fix, so the installed agent still logged 'Unknown command type: heartbeat_ack'.
Rebuild it with the fix; add a test asserting heartbeat_ack is silently ignored
(no response, no command, no log).
wmantly