Update Dockerfile

server/Dockerfile

@@ -0,0 +1,13 @@
+FROM node:18-alpine
+WORKDIR /app
+
+# Set production environment
+ENV NODE_ENV=production
+
+COPY package*.json ./
+RUN npm install --production
+
+COPY . .
+
+EXPOSE 3001
+CMD ["node", "server.js"]