When Registry is set on DaemonOptions, Start() auto-registers the daemon
(filling PID and Health address) and Stop() auto-unregisters it. Consumers
without a registry are completely unaffected.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- WaitForHealth: use http.Client with 2s timeout instead of DefaultClient
- Daemon.Stop: use errors.Join for proper error unwrapping
- Remove unused OnReload field from DaemonOptions
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>