fix: slim first-party plugin check

- drop full home-manager evaluation in check
- add minimal stub options for module eval
- ensure assertions force plugin resolution

Tests: nix build .#checks.aarch64-darwin.first-party-plugins --accept-flake-config

flake.nix

@@ -48,9 +48,7 @@
 
         checks = {
           gateway = packageSetStable.openclaw-gateway;
-          first-party-plugins = pkgs.callPackage ./nix/checks/openclaw-first-party-plugins.nix {
-            home-manager = home-manager;
-          };
+          first-party-plugins = pkgs.callPackage ./nix/checks/openclaw-first-party-plugins.nix {};
         } // (if pkgs.stdenv.hostPlatform.isLinux then {
           gateway-tests = pkgs.callPackage ./nix/checks/openclaw-gateway-tests.nix {
             sourceInfo = sourceInfoStable;

nix/checks/openclaw-first-party-plugins.nix

@@ -1,15 +1,57 @@
-{ lib, pkgs, home-manager }:
+{ lib, pkgs }:
 
 let
-  eval = home-manager.lib.homeManagerConfiguration {
-    pkgs = pkgs;
+  stubModule = { lib, ... }: {
+    options = {
+      assertions = lib.mkOption {
+        type = lib.types.listOf lib.types.attrs;
+        default = [];
+      };
+
+      home.homeDirectory = lib.mkOption {
+        type = lib.types.str;
+        default = "/tmp";
+      };
+
+      home.packages = lib.mkOption {
+        type = lib.types.listOf lib.types.anything;
+        default = [];
+      };
+
+      home.file = lib.mkOption {
+        type = lib.types.attrs;
+        default = {};
+      };
+
+      home.activation = lib.mkOption {
+        type = lib.types.attrs;
+        default = {};
+      };
+
+      launchd.agents = lib.mkOption {
+        type = lib.types.attrs;
+        default = {};
+      };
+
+      systemd.user.services = lib.mkOption {
+        type = lib.types.attrs;
+        default = {};
+      };
+
+      programs.git.enable = lib.mkOption {
+        type = lib.types.bool;
+        default = false;
+      };
+    };
+  };
+
+  eval = lib.evalModules {
     modules = [
+      stubModule
       ../modules/home-manager/openclaw.nix
       ({ lib, options, ... }: {
         config = {
           home.homeDirectory = "/tmp";
-          home.username = "openclaw";
-          home.stateVersion = "24.11";
           programs.git.enable = false;
           programs.openclaw = {
             enable = true;
@@ -21,8 +63,9 @@ let
         };
       })
     ];
+    specialArgs = { inherit pkgs; };
   };
-  evalKey = builtins.deepSeq eval.config.home.packages "ok";
+  evalKey = builtins.deepSeq eval.config.assertions "ok";
 in
 pkgs.stdenvNoCC.mkDerivation {
   name = "openclaw-first-party-plugins-${evalKey}";