Update Dockerfile

Dockerfile

@@ -7,5 +7,13 @@ EXPOSE 7860
 ENV PORT=7860
 ENV NODE_ENV=production
 
+# Fix permissions - create directories and set ownership
+RUN mkdir -p /app/src /app/out && \
+    chown -R node:node /app && \
+    chmod -R 755 /app
+
+# Switch to non-root user
+USER node
+
 # Start the server
 CMD ["node", "server/server.js"]