chore: update environment configuration and deployment scripts

- Added production environment variables to docker-compose.yml
- Updated Dockerfile for API and web to use Turbo build commands
- Modified turbo.json to include new environment variables
- Updated API index.ts to use new environment configuration
- Updated README.md with correct API port
- Added start:api script to package.json
- Improved deployment and configuration management

docker-compose.yml

@@ -6,11 +6,12 @@ services:
     container_name: unreal-chat-api
     restart: unless-stopped
     environment:
+      - NODE_ENV=production
       - DATABASE_URL=${DATABASE_URL}
       - JWT_SECRET=your-secret-key
-      - PORT=4000
-    ports:
-      - "4000:4000"
+      - API_PORT=4000
+      - ALLOWED_ORIGINS=${ALLOWED_ORIGINS}
+      - API_HOST=${API_HOST}
     networks:
       - default-network