- Initialize :aprsme ETS table in application.ex with message_number
counter; was missing, causing crash in Is.send_message/1
- Trigger reconnect on gen_tcp.send failure instead of leaking the
dead socket with active timers
- Remove cluster-only env vars from deployment (POD_IP, POD_NAME,
POD_NAMESPACE, RELEASE_DISTRIBUTION, RELEASE_NODE) since
CLUSTER_ENABLED=false
- Remove redundant APRS_PASSCODE secret ref now that APRS_PASSWORD
is set as plaintext
