update dockerfile

Dockerfile

@@ -56,6 +56,11 @@ RUN mkdir -p /app/temp && chmod 777 /app/temp
 # Create Streamlit config directory and set permissions
 RUN mkdir -p /app/.streamlit && chmod 777 /app/.streamlit
 
+# Doctr needs a writable cache directory
+ENV DOCTR_CACHE_DIR=/app/.cache/doctr
+RUN mkdir -p /app/.cache/doctr && chmod -R 777 /app/.cache
+
+
 # Copy Streamlit configuration
 # COPY .streamlit/ /app/.streamlit/