Change docker image

backend/Dockerfile

@@ -1,5 +1,5 @@
 # Backend Dockerfile for MotoVaultPro
-FROM node:20-alpine
+FROM node:20
 
 # Set working directory
 WORKDIR /app
@@ -17,8 +17,7 @@ COPY . .
 RUN npm run build
 
 # Create non-root user
-RUN addgroup -g 1001 -S nodejs
-RUN adduser -S backend -u 1001
+RUN groupadd -r nodejs && useradd -r -g nodejs -u 1001 backend
 
 # Change ownership of the app directory
 RUN chown -R backend:nodejs /app