fix(k3s): drop Home Manager from the test workers (#432)

The worker MicroVMs ran `home-manager-ryan.service`, which failed on two of them
(`/nix/var/nix/temproots` permission denied, and no `/home/ryan`), so
`HostSystemdServiceCrashed` fired for days. Mirror the masters and extend their
regression test to all six nodes.

Assisted-by: DeepSeek Harness 0.2.0-rc.2 (deepseek-flash)

home/hosts/linux/k3s-test-1-worker-1.nix

@@ -1,3 +0,0 @@
-{
-  imports = [ ../../linux/core.nix ];
-}

home/hosts/linux/k3s-test-1-worker-2.nix

@@ -1,3 +0,0 @@
-{
-  imports = [ ../../linux/core.nix ];
-}

home/hosts/linux/k3s-test-1-worker-3.nix

@@ -1,3 +0,0 @@
-{
-  imports = [ ../../linux/core.nix ];
-}

outputs/README.md

@@ -49,7 +49,7 @@ them. Others name specific hosts and only cover a new host if you add it.
 | Kind                | Tests                                                                                                                                                                                                                                   |
 | ------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
 | Every configuration | `hostname`, `kernel`, `nix-system-features`, `security-apparmor`, `security-container-groups`, `security-exporters`, `security-firewall`, `security-k3s-kubeconfig`, `security-k3s-pod-firewall`, `security-kernel`, `security-ssh-x11` |
-| Named hosts only    | `btrbk`, `home-manager`, `home-manager-xdg`, `computer-use-headless`, `k3s-api-endpoint`, `k3s-master-home-manager`, `idols-ai-gpu`, `idols-ai-voice-input`, `security-postgres-auth`, `youko-metrics`, `ups-metrics`, `shoukei-logind` |
+| Named hosts only    | `btrbk`, `home-manager`, `home-manager-xdg`, `computer-use-headless`, `k3s-api-endpoint`, `k3s-node-home-manager`, `idols-ai-gpu`, `idols-ai-voice-input`, `security-postgres-auth`, `youko-metrics`, `ups-metrics`, `shoukei-logind`   |
 
 `hostname` expects each configuration's `networking.hostName` to equal its name. Niri desktop
 configurations are the exception (`ai-niri` → `ai`, `shoukei-niri` → `shoukei`) and are listed in

outputs/x86_64-linux/src/k3s-test-1-worker-1.nix

@@ -26,9 +26,6 @@ let
         inputs.microvm.nixosModules.microvm
         { modules.secrets.server.kubernetes.enable = true; }
       ];
-    home-modules = map mylib.relativeToRoot [
-      "home/hosts/linux/${name}.nix"
-    ];
   };
 
   systemArgs = modules // args;

outputs/x86_64-linux/src/k3s-test-1-worker-2.nix

@@ -26,9 +26,6 @@ let
         inputs.microvm.nixosModules.microvm
         { modules.secrets.server.kubernetes.enable = true; }
       ];
-    home-modules = map mylib.relativeToRoot [
-      "home/hosts/linux/${name}.nix"
-    ];
   };
 
   systemArgs = modules // args;

outputs/x86_64-linux/src/k3s-test-1-worker-3.nix

@@ -26,9 +26,6 @@ let
         inputs.microvm.nixosModules.microvm
         { modules.secrets.server.kubernetes.enable = true; }
       ];
-    home-modules = map mylib.relativeToRoot [
-      "home/hosts/linux/${name}.nix"
-    ];
   };
 
   systemArgs = modules // args;

outputs/x86_64-linux/tests/k3s-node-home-manager/expected.nix

@@ -3,4 +3,7 @@ lib.genAttrs [
   "k3s-test-1-master-1"
   "k3s-test-1-master-2"
   "k3s-test-1-master-3"
+  "k3s-test-1-worker-1"
+  "k3s-test-1-worker-2"
+  "k3s-test-1-worker-3"
 ] (_: false)

outputs/x86_64-linux/tests/k3s-node-home-manager/expr.nix

@@ -8,6 +8,9 @@ lib.genAttrs
     "k3s-test-1-master-1"
     "k3s-test-1-master-2"
     "k3s-test-1-master-3"
+    "k3s-test-1-worker-1"
+    "k3s-test-1-worker-2"
+    "k3s-test-1-worker-3"
   ]
   (
     name: