nrec-nixos01: import qemu-guest profile for virtio modules

The initrd was missing virtio drivers, preventing the root
filesystem from being detected during boot.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

hosts/nrec-nixos01/default.nix

@@ -1,7 +1,8 @@
-{ ... }:
+{ modulesPath, ... }:
 {
   imports = [
     ./configuration.nix
     ../../system/packages.nix
+    (modulesPath + "/profiles/qemu-guest.nix")
   ];
 }