Use intent model from archfc to pick prompt gateway (#328)

arch/docker-compose.e2e.yaml

@@ -1,19 +0,0 @@
-services:
-  archgw:
-    image: katanemo/archgw:latest
-    ports:
-      - "10000:10000"
-      - "10001:10001"
-      - "11000:11000"
-      - "12000:12000"
-      - "19901:9901"
-    volumes:
-      - ${ARCH_CONFIG_FILE:-../demos/weather_forecast/arch_config.yaml}:/config/arch_config.yaml
-      - /etc/ssl/cert.pem:/etc/ssl/cert.pem
-      - ~/archgw_logs:/var/log/
-    extra_hosts:
-      - "host.docker.internal:host-gateway"
-    environment:
-      - OPENAI_API_KEY=${OPENAI_API_KEY:?error}
-      - MISTRAL_API_KEY=${MISTRAL_API_KEY:?error}
-      - OTEL_TRACING_HTTP_ENDPOINT=http://host.docker.internal:4318/v1/traces