Added ssh key debug

roles/pfsense_upgrade/tasks/preflight.yml

@@ -1,6 +1,9 @@
 ---
 # roles/pfsense_upgrade/tasks/preflight.yml
 # Validate SSH connectivity, confirm host is pfSense, check disk space.
+- name: DEBUG - Show SSH key path
+  ansible.builtin.debug:
+    msg: "SSH key path: {{ ansible_ssh_private_key_file | default('NOT SET') }}"
     
 - name: Verify SSH connectivity to pfSense host
   ansible.builtin.raw: echo "ping"