Adds the session-less alarm CLI subcommands to mxgw-py. stream-alarms reads a
bounded slice of the gateway's central alarm feed (--filter-prefix,
--max-messages, --timeout, --json; aggregate `{messages: [...]}`);
acknowledge-alarm is a unary ack (--reference required, --comment, --operator).
GatewayClient.stream_alarms joins query_active_alarms via a
_canceling_alarm_feed_iterator helper mirroring the existing
_canceling_active_alarms_iterator pattern.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Joseph Doherty
828e3e6cf6