update configs to properly host the api_server so that demo functions as expected

demos/network_agent/docker-compose.yaml

@@ -2,14 +2,19 @@ services:
   api_server:
     build:
       context: .
+      dockerfile: Dockerfile
+    ports:
+      - "18083:80"
+
+  chatbot_ui:
+    build:
+      context: ../shared/chatbot_ui
+      dockerfile: Dockerfile
+    ports:
+      - "18080:8080"
     environment:
       - CHAT_COMPLETION_ENDPOINT=http://host.docker.internal:10000/v1
+    extra_hosts:
+      - "host.docker.internal:host-gateway"
     volumes:
       - ./arch_config.yaml:/app/arch_config.yaml
-      - ../shared/chatbot_ui/common.py:/app/common.py
-    ports:
-      - "18080:80"
-    healthcheck:
-        test: ["CMD", "curl" ,"http://localhost:80/healthz"]
-        interval: 5s
-        retries: 20