Update Dockerfile

Dockerfile

@@ -1,6 +1,6 @@
-FROM python:3.12-slim
+FROM python:3.11-slim
 
-# Set up a new user named "user" with UID 1000
+# Create user to avoid running as root
 RUN useradd -m -u 1000 user
 USER user
 ENV PATH="/home/user/.local/bin:${PATH}"
@@ -10,5 +10,7 @@ WORKDIR /app
 COPY --chown=user . .
 RUN pip install --no-cache-dir -r requirements.txt
 
-# Streamlit-specific flags for HF Spaces
+# Port 7860 is mandatory for HF Spaces
+EXPOSE 7860
+
 CMD ["streamlit", "run", "app.py", "--server.port=7860", "--server.address=0.0.0.0"]