added overwrite protection

scripts/setup_wizard.sh

@@ -102,8 +102,15 @@ install_unit() {
     local filename=$(basename "$template_url")
     local dest_path=/etc/systemd/system/"$filename"
 
-    log_info "Installing $filename..."
+    if [ -e "$dest_path" ]; then
+        get_input "CONFIRM_OVERWRITE" "Overwrite $dest_path? (y/n)" "y" "false"
+        if [[ "${CONFIRM_OVERWRITE,,}" != "y" ]]; then
+            echo "Skipping overwrite of ${dest_path}."
+            return
+        fi
+    fi
 
+    log_info "Installing $filename..."
     curl -sL $template_url | envsubst > "$dest_path"
     log_success "$filename installed to $dest_path"
 }
@@ -138,7 +145,6 @@ else
 fi
 
 
-
 # 1. Collect Inputs
 # Example:
 get_input "HOST_NAME" "Enter Hostname" "$(hostname)" "false"