- Add example Grafana dashboard with 24 panels for license metrics
- Register dashboard with wp-prometheus via hook
- Add dashboard documentation with PromQL examples and alerting rules
- Update README with monitoring section
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- New Metrics settings tab with enable/disable toggle
- PrometheusController for wp_prometheus_collect_metrics hook
- License gauges: total by status, lifetime, expiring, expiring soon
- Download gauges: total downloads, active versions
- API counters: requests, rate limits, validation errors
- Metric tracking in RestApiController and UpdateController
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
