Enhance Ansible playbooks and documentation for Debian and Proxmox management. Add new playbooks for Debian hardening, maintenance, SSH key rotation, and Proxmox cluster setup. Update README.md with quick start instructions for Debian and Proxmox operations. Modify group_vars to include Argo CD application settings, improving deployment flexibility and clarity.

ansible/roles/debian_ssh_key_rotation/defaults/main.yml

@@ -0,0 +1,10 @@
+---
+# List of users to manage keys for.
+# Example:
+# debian_ssh_rotation_users:
+#   - name: deploy
+#     home: /home/deploy
+#     state: present
+#     keys:
+#       - "ssh-ed25519 AAAA... deploy@laptop"
+debian_ssh_rotation_users: []