Add HF Spaces deployment fixes

Dockerfile

@@ -38,5 +38,5 @@ EXPOSE 7860
 # Make start script executable
 RUN chmod +x start.sh
 
-# Run both Flask and Streamlit using start script
+# Run both Flask and Streamlit with XSRF protection disabled
 CMD ["bash", "start.sh"]

start.sh

@@ -6,5 +6,5 @@ python flask_app.py &
 # Wait a bit for Flask to start
 sleep 2
 
-# Start Streamlit on port 7860 (Hugging Face Spaces default)
-streamlit run streamlit_app.py --server.port 7860 --server.address 0.0.0.0 --server.headless true --browser.serverAddress 0.0.0.0 --browser.gatherUsageStats false
+# Start Streamlit on port 7860 with XSRF protection disabled (required for HF Spaces file uploads)
+streamlit run streamlit_app.py --server.port 7860 --server.address 0.0.0.0 --server.headless true --browser.serverAddress 0.0.0.0 --browser.gatherUsageStats false --server.enableXsrfProtection false