Updated docker compose syntax with respect to dependencies to maintain consistency with the upstream docker-compose role.

templates/nats/nats.conf.j2

@@ -1,6 +1,9 @@
 # Single-node NATS configuration for local app-to-app messaging.
 # WeatherFeeder can publish to this server without authentication.
 
+# Listen on all IPv4 and IPv6 interfaces
+listen: "[::]:4222"
+
 # Client connections (WeatherFeeder + consumers).
 port: 4222
 
@@ -8,6 +11,6 @@ port: 4222
 monitor_port: 8222
 
 # Optional persistence for future stream use.
-jetstream {
-  store_dir: "/data"
-}
+#jetstream {
+#  store_dir: "/data"
+#}