Refactor(clan_lib): move nix bound classes out of the cli folder

pkgs/clan-cli/clan_cli/tests/test_inventory.py

@@ -1,4 +1,4 @@
-from clan_cli.inventory.classes import Inventory, Machine, Meta, Service
+from clan_lib.nix_models.inventory import Inventory, Machine, Meta, Service
 
 
 def test_make_meta_minimal() -> None:

pkgs/clan-cli/clan_cli/tests/test_modules.py

@@ -5,15 +5,17 @@ from typing import TYPE_CHECKING
 import pytest
 from clan_cli.flake import Flake
 from clan_cli.inventory import (
-    Inventory,
-    Machine,
-    MachineDeploy,
     set_inventory,
 )
 from clan_cli.machines.create import CreateOptions, create_machine
 from clan_cli.nix import nix_eval, run
 from clan_cli.tests.fixtures_flakes import FlakeForTest
 from clan_lib.api.modules import list_modules
+from clan_lib.nix_models.inventory import (
+    Inventory,
+    Machine,
+    MachineDeploy,
+)
 
 if TYPE_CHECKING:
     from .age_keys import KeyPair