Fix permissions for Chainlit .files directory

Dockerfile

@@ -17,8 +17,11 @@ RUN pip install --no-cache-dir -r requirements.txt
 # Copy the rest of the application
 COPY . .
 
-# Create necessary directories
-RUN mkdir -p data/planogram001
+# Create necessary directories and set permissions
+RUN mkdir -p data/planogram001 && \
+    mkdir -p .files && \
+    chmod -R 777 .files && \
+    chmod -R 777 data
 
 # Expose the port Chainlit runs on
 EXPOSE 8000