Enhance YouTube video download functionality with improved error handling and format options. Update Docker configuration to use environment variable for port and simplify network settings.

youtube-downloader/docker-compose.yml

@@ -3,17 +3,11 @@ services:
     build: .
     container_name: youtube_downloader_service
     restart: unless-stopped
-    ports:
-      - "5557:5000"
     volumes:
       - ./downloads:/app/downloads
       - ./youtube_cookies.txt:/app/youtube_cookies.txt
     environment:
       - YOUTUBE_COOKIES_FILE=/app/youtube_cookies.txt
-    networks:
-      - downloader_network
-
-networks:
-  downloader_network:
-    driver: bridge
+      - PORT=5557
+    network_mode: host