- Add get_service_health RPCD method to check all HAProxy routes
- Integrate /usr/sbin/service-health-check for backend HTTP probing
- Add health panel in services.js with up/down stats and health %
- Display down services list with tooltips showing IP:port
- Add refresh button for manual health check trigger
- Update ACL with get_service_health read permission
- 5-minute cache for health data with force-refresh option
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>