simplify dockerfile and docker-compose files

docker-compose.yml

@@ -6,16 +6,8 @@ services:
     volumes:
       - ./data/rag_storage:/app/data/rag_storage
       - ./data/inputs:/app/data/inputs
-      - .env:/app/.env
+      - ./config.ini:/app/config.ini
+      - ./.env:/app/.env
     env_file:
       - .env
-    environment:
-      - TZ=UTC
     restart: unless-stopped
-    networks:
-      - lightrag_net
-    extra_hosts:
-      - "host.docker.internal:host-gateway"
-networks:
-  lightrag_net:
-    driver: bridge