feat(poppy): add automatic Rosetta 2 installation for Intel apps

hosts/poppy/system.nix

@@ -139,6 +139,14 @@
     };
   };
 
+  # Install Rosetta 2 for Intel apps on Apple Silicon
+  system.activationScripts.rosetta.text = ''
+    if ! /usr/bin/pgrep -q oahd 2>/dev/null; then
+      echo "Installing Rosetta 2..."
+      /usr/sbin/softwareupdate --install-rosetta --agree-to-license
+    fi
+  '';
+
   system.activationScripts.postActivation.text = ''
     echo "Restarting Dock..."
     sudo -u mikl /usr/bin/killall Dock