- Add health check RPCD methods:
- check_service_health: Check DNS, cert, firewall for single domain
- check_all_health: Batch check all published services
- Add URL Readiness Checker wizard card to dashboard:
- Check if domain DNS resolves correctly
- Verify firewall ports 80/443 are open
- Check SSL certificate status
- Show actionable recommendations
- Display inline health status badges on service rows:
- DNS resolution status (ok/failed)
- Certificate expiry (ok/warning/critical/expired)
- Add health summary bar showing overall system status
- Add per-service health check button
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>