Merge authentik-quadlet-fix: Integrate working authentik implementation

Merge completed authentik Quadlet implementation that resolves all deployment
issues and enables external HTTPS access. This brings the working solution
developed and tested on authentik-quadlet-fix branch into main.

All systemd services now generate correctly and authentik is fully operational
at https://auth.jnss.me with proper SSL termination via Caddy.

roles/valkey/defaults/main.yml

@@ -22,6 +22,11 @@ valkey_protected_mode: true  # Enable protection for TCP
 valkey_unixsocket: "/run/valkey/valkey.sock"
 valkey_unixsocketperm: 777  # Allows container access
 
+# Unix Socket Configuration
+valkey_unix_socket_enabled: true
+valkey_unix_socket_path: "/var/run/valkey/valkey.sock"
+valkey_unix_socket_perm: "770"
+
 # Authentication
 valkey_password: "{{ vault_valkey_password }}"