Update Dockerfile

Dockerfile

@@ -21,8 +21,8 @@ RUN apt-get update && apt-get install -y \
 RUN pip install --upgrade pip
 RUN pip install -r requirements.txt
 
-# Expose port for Hugging Face
+# Expose port expected by Hugging Face
 EXPOSE 7860
 
-# Start the Flask app
-CMD ["python", "app.py"]
+# Run app with 4 Gunicorn workers in production mode
+CMD ["gunicorn", "--workers=4", "--bind=0.0.0.0:7860", "app:app"]