fix(microvm): pass myNurPkgs into the k3s guests

The guest configurations import modules/base/overlays.nix, whose overlays
require myNurPkgs, so every VM host failed to evaluate its microVM definitions.

Assisted-by: DeepSeek Harness 0.2.1-rc.2 (deepseek-flash)

hosts/12kingdoms-shoryu/microvm.nix

@@ -4,6 +4,7 @@
   mylib,
   agenix,
   mysecrets,
+  myNurPkgs,
   inputs,
   ...
 }:
@@ -21,6 +22,7 @@
         mylib
         agenix
         mysecrets
+        myNurPkgs
         ;
     };
     config.imports = [ ../k8s/k3s-test-1-master-1 ];
@@ -36,6 +38,7 @@
         mylib
         agenix
         mysecrets
+        myNurPkgs
         ;
     };
     config.imports = [ ../k8s/k3s-test-1-worker-1 ];

hosts/12kingdoms-shushou/microvm.nix

@@ -4,6 +4,7 @@
   mylib,
   agenix,
   mysecrets,
+  myNurPkgs,
   inputs,
   ...
 }:
@@ -21,6 +22,7 @@
         mylib
         agenix
         mysecrets
+        myNurPkgs
         ;
     };
     config.imports = [ ../k8s/k3s-test-1-master-3 ];
@@ -36,6 +38,7 @@
         mylib
         agenix
         mysecrets
+        myNurPkgs
         ;
     };
     config.imports = [ ../k8s/k3s-test-1-worker-3 ];

hosts/12kingdoms-youko/microvm.nix

@@ -4,6 +4,7 @@
   mylib,
   agenix,
   mysecrets,
+  myNurPkgs,
   inputs,
   ...
 }:
@@ -21,6 +22,7 @@
         mylib
         agenix
         mysecrets
+        myNurPkgs
         ;
     };
     config.imports = [ ../k8s/k3s-test-1-master-2 ];
@@ -38,6 +40,7 @@
         mylib
         agenix
         mysecrets
+        myNurPkgs
         ;
     };
     config.imports = [ ../k8s/k3s-test-1-worker-2 ];