introduce flake parts module for clan nixos tests

clanServices/wifi/flake-module.nix

@@ -1,6 +1,5 @@
 {
   self,
-  inputs,
   lib,
   ...
 }:
@@ -14,7 +13,7 @@ in
     wifi = module;
   };
   perSystem =
-    { pkgs, ... }:
+    { ... }:
     {
       /**
         1. Prepare the test vars
@@ -23,15 +22,10 @@ in
         2. To run the test
         nix build .#checks.x86_64-linux.hello-service
       */
-      checks =
-        # Currently we don't support nixos-integration tests on darwin
-        lib.optionalAttrs (pkgs.stdenv.isLinux) {
-          wifi-service = import ./tests/vm/default.nix {
-            inherit module;
-            inherit inputs pkgs;
-            clan-core = self;
-            nixosLib = import (self.inputs.nixpkgs + "/nixos/lib") { };
-          };
-        };
+      clan.nixosTests.wifi-service = {
+        imports = [ ./tests/vm/default.nix ];
+
+        clan.modules."@clan/wifi" = module;
+      };
     };
 }