- Implement start_vm, stop_vm, reboot_vm, shutdown_vm, resume_vm
- Implement suspend_vm for pausing VMs
- Implement list_vms with full resource filtering
- Implement get_vm with detailed configuration parsing
- Implement get_vm_status and get_vm_config
- Implement create_vm, delete_vm, clone_vm
- Implement migrate_vm for live migration
- Implement snapshot operations: create, delete, rollback, list
- All operations use proper error handling with Option safety
- Add 2 unit tests for VM info and state serialization
- Add proxmox module with client, cluster, and resource management
- Implement VM management stubs with full API documentation
- Add database migrations for proxmox_clusters and proxmox_resources tables
- Implement IPC commands for cluster CRUD operations
- Add Proxmox state management to AppState
- Create 22 unit tests for Proxmox modules (all passing)
- Update lib.rs, state.rs, and integrations.rs for Proxmox integration
