New field from upstream plugin: when the real client IP is
indeterminate (trusted proxy present but no usable XFF entry),
fail_closed=true blocks the request instead of passing it through.
- Add fail_closed to GeoBlockSettings type
- Include in mergeGeoBlockSettings (OR semantics: either global or host enables it)
- Emit fail_closed in buildBlockerHandler (only when true)
- Parse geoblock_fail_closed from form in both settings and proxy-host actions
- Add Checkbox UI in the Advanced accordion of GeoBlockFields
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- Implemented health monitoring service that detects Caddy restarts/crashes
- Automatically reapplies configuration when Caddy restarts
- Added metrics settings UI for enabling Prometheus/Grafana monitoring
- Caddy metrics exposed on separate port (default: 9090) via reverse proxy
- Admin API (port 2019) kept internal-only for security
- Updated docker-compose.yml with metrics port documentation
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
