0.0.11

fix: resolve Serf queue depth issue with comprehensive monitoring (#19)

* fix: resolve Serf queue depth issue with comprehensive monitoring

- Add state change detection using hash comparison
- Add queue depth throttling (3600 limit)
- Increase broadcast period from 5s to 30s
- Add conservative Serf configuration
- Add Prometheus metrics for monitoring:
  * hypercore_serf_queue_depth
  * hypercore_workload_count
  * hypercore_broadcast_skipped_total
  * hypercore_state_changes_total
- Add /metrics endpoint for Prometheus scraping

This provides comprehensive monitoring while maintaining safety.

* refactor: clean up code formatting and improve readability

- Adjust spacing and alignment for consistency
- Ensure proper organization of Prometheus metrics in the Agent struct
- Maintain existing functionality while enhancing code clarity