Monitor health and logs

Health checks

Local health check: GET /healthz on port 8080 returns 200 OK when the Collector is running.
Metrics: GET /metrics on the same port, in Prometheus text format.
In the portal: the Collectors page shows each Collector’s status, last heartbeat, version and host operating system. If a Collector stops reporting, the portal marks it offline, and every device behind it shows Collector offline instead of a stale status.

Runtime	Where to find logs
Linux	The systemd journal (`journalctl -u av-bridge`) and `/var/log/av-bridge/`
Windows	`C:\ProgramData\av-bridge\logs\`
Docker and Kubernetes	stdout and stderr. Forward these to your logging platform, such as Amazon CloudWatch Logs, Azure Monitor, Google Cloud Logging or a self-hosted equivalent.