Update Dockerfile

Dockerfile

@@ -1,19 +1,19 @@
 FROM jupyter/minimal-notebook:python-3.9
 
-# Install additional packages
-RUN pip install gradio
+USER root
 
-# Create a very simple Python script to relay Jupyter through Gradio on port 7860
-RUN echo "import gradio as gr; import os; os.system('jupyter notebook --ip=0.0.0.0 --port=8888 --no-browser --NotebookApp.token=\\\"\\\" --NotebookApp.password=\\\"\\\" &'); demo = gr.Interface(fn=lambda: None, inputs=[], outputs=gr.HTML('<iframe src=\"/proxy/8888/tree\" width=\"100%\" height=\"800px\"></iframe>'), title=\"Jupyter Notebook\"); demo.launch(server_port=7860)" > /home/jovyan/relay.py
+# Install Gradio
+RUN pip install --no-cache-dir gradio
 
-# Copy notebook
+# Copy application files
+COPY app.py /home/jovyan/
 COPY welcome.ipynb /home/jovyan/
 
-# Use the non-root jovyan user (comes with the Jupyter image)
+# Switch back to non-root user
 USER jovyan
 
-# Expose port 7860 (required by Hugging Face Spaces)
+# Expose the port Hugging Face expects
 EXPOSE 7860
 
-# Run the relay script
-CMD ["python", "/home/jovyan/relay.py"]
+# Run the app
+CMD ["python", "/home/jovyan/app.py"]