pkgs/clan: Add machine validator with suggestion logic

Add machine validator with suggestion logic to:
- `clan machines update`
- `clan machines delete`
- `clan machines update-hardware-config`

pkgs/clan-cli/clan_cli/machines/delete.py

@@ -3,6 +3,7 @@ import logging
 
 from clan_lib.machines.delete import delete_machine
 from clan_lib.machines.machines import Machine
+from clan_lib.machines.suggestions import validate_machine_names
 
 from clan_cli.completions import add_dynamic_completer, complete_machines
 
@@ -10,6 +11,7 @@ log = logging.getLogger(__name__)
 
 
 def delete_command(args: argparse.Namespace) -> None:
+    validate_machine_names([args.name], args.flake)
     delete_machine(Machine(flake=args.flake, name=args.name))