chore: add custom bridge network for E2E/CI in docker-compose.ci.yml to resolve external network issues

docker-compose.ci.yml

@@ -30,3 +30,12 @@ services:
     volumes: !override
       - backend_cache:/app/__pycache__
       - backend_uploads:/app/uploads
+
+# En Jenkins/agents no existe la red externa de aduanasoft-hub (desarrollo local).
+# Sin esto, `docker compose up` falla: "aduanasoft-hub_default ... could not be found".
+# Red bridge propia por proyecto (COMPOSE_PROJECT_NAME) para E2E/CI en paralelo.
+networks:
+  hub-net:
+    driver: bridge
+    external: false
+    name: ${COMPOSE_PROJECT_NAME:-anexo76-ci}_hub_net