- Container agent: rename from AgapHost to 'Zabbix server' so it monitors
the Zabbix server container (was conflicting with the host agent)
- Enable passive listeners in container agent (remove ZBX_STARTAGENTS=0)
- Update 'Zabbix server' host interface from 127.0.0.1 to DNS zabbix-agent
so the server can reach the agent over the backend Docker network
Host zabbix-agent2 (systemd) keeps hostname AgapHost for host monitoring.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Set AGENT_HOSTNAME=AgapHost to match the existing host in Zabbix server
(was agap-server, causing "host not found" errors).
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
