feat: azurelocal-update-monitoring — update and patch monitoring tool

## Summary

Planned repo: \zurelocal-update-monitoring\

Monitoring tool for tracking updates, patches, and firmware across Azure Local environments.

## Status

Placeholder — repo not yet created. Idea captured for future planning.

## Related
- Brainstorm: https://github.com/AzureLocal/azurelocal.github.io/issues/5