chore: drop container_name from alloy and traffmonetizer

alloy/compose.yml

@@ -1,7 +1,6 @@
 services:
   alloy:
     image: grafana/alloy:v1.16.1
-    container_name: alloy
     restart: unless-stopped
     hostname: ${ALLOY_HOSTNAME:?required}
     network_mode: host                        # node_exporter netdev/netstat sees real host interfaces (eth0…) not veth
@@ -38,7 +37,6 @@ services:
 
   dockerproxy:
     image: tecnativa/docker-socket-proxy:v0.5.0
-    container_name: alloy-dockerproxy
     restart: unless-stopped
     security_opt:
       - no-new-privileges:true