- Add docs/metrics.md with comprehensive metrics reference
- Document all 9 exported metrics with types and descriptions
- Include Prometheus configuration examples
- Include Grafana dashboard recommendations
- Include alerting rule examples
- Update README.md to reference metrics documentation
- Add tests verifying all documented metrics are present
- Add tests verifying HELP/TYPE comments for each metric
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
Bead-Id: bd-y0t
