- Simplified command cases by removing unnecessary semicolons.

- Improved error handling in rebuild.nix for clarity and consistency.

modules/ncli/commands/switch.nix

@@ -1,9 +1,5 @@
 # ncli/commands/switch.nix — Specialization switching
-lib:
-
-{}:
-
-{
+lib: {
   switch_case = ''
     current=""
     if [ -f /etc/nixos-tags ]; then
@@ -35,6 +31,5 @@ lib:
         echo "To switch to a specialization, run: 'ncli switch <tag>'"
       fi
     fi
-    ;;
   '';
 }