fix: add coolify external network to frontend for Traefik routing

Coolify does not automatically add the coolify network to docker-compose services.
The frontend needs to be on the coolify network for Traefik to route traffic to it.

docker-compose.yml

@@ -15,6 +15,7 @@ services:
       start_period: 15s
     networks:
     - hms-network
+    - coolify
   backend:
     build: ./backend
     depends_on:
@@ -90,6 +91,8 @@ services:
 networks:
   hms-network:
     driver: bridge
+  coolify:
+    external: true
 volumes:
   postgres_data: null
   redis_data: null