- Add fn node list command to list all registered nodes with status and URL
- Add fn node show command to display detailed node information including system metrics
- Add fn node health-check command to trigger and verify node health status
- Add fn node remove command to unregister nodes from the mesh
- Add fn mesh status command to show mesh topology with peer connections
- Add comprehensive tests for all node and mesh CLI commands
- Update bin.ts to wire up new node and mesh subcommands
- Update memory with CLI mock pattern for testing
