Update Dockerfile

Dockerfile

@@ -1,4 +1,4 @@
-# Use an official Node.js runtime as base image for frontend
+# Frontend Stage
 FROM node:14 as frontend
 
 WORKDIR /frontend
@@ -9,11 +9,19 @@ RUN npm install
 COPY frontend /frontend
 RUN npm run build
 
-# Use an official Python runtime for backend
+# Backend Stage
 FROM python:3.8-slim
 
 WORKDIR /app
 
+# Set environment variables for custom cache directories
+ENV NPM_CONFIG_PREFIX=/app/.npm-global
+ENV XDG_CACHE_HOME=/app/.cache
+
+# Ensure cache directories exist and have correct permissions
+RUN mkdir -p /app/.npm-global && chown -R 1000:0 /app/.npm-global
+RUN mkdir -p /app/.cache && chown -R 1000:0 /app/.cache
+
 # Install node to serve the React app
 RUN apt-get update && apt-get install -y nodejs npm && apt-get clean