- Replace unreliable pexp patterns with PID-file approach
- Add graceful shutdown with timeout handling in rc.d script
- Implement process validation after startup
- Add SIGHUP config reload support for Unix services
- Ensure PID-file cleanup on service exit
- Update systemd service to use PIDFile parameter
Platform improvements:
- OpenBSD: rc_check/rc_stop functions now PID-file based
- Linux: systemd Type=forking with proper PIDFile support
- Cross-platform: /var/run/furt.pid standard location
Resolves service status detection issues where rcctl check showed
(failed) despite running service due to process name variations
across platforms.