test: init e2e (#34193)

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

docker/docker-compose.middleware.yaml

@@ -127,6 +127,8 @@ services:
     restart: always
     env_file:
       - ./middleware.env
+    extra_hosts:
+      - "host.docker.internal:host-gateway"
     environment:
       # Use the shared environment variables.
       LOG_OUTPUT_FORMAT: ${LOG_OUTPUT_FORMAT:-text}