Parses Blocky's /metrics (Prometheus text) endpoint to show:
- Blocking status (Enabled/Disabled)
- Blocked domains count (denylist entries)
- Total queries served
- Cache hit rate %
No REST stats endpoint exists in Blocky, so the proxy handler
fetches and parses the Prometheus text format directly.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>