seperated backend and frontend

backend/Dockerfile

@@ -0,0 +1,17 @@
+FROM node:20-alpine
+
+WORKDIR /usr/src/app
+
+# Copy package files
+COPY package*.json ./
+
+RUN npm install
+
+# Copy everything from root
+COPY . .
+
+RUN npm run build
+
+EXPOSE 4000
+
+CMD ["node", "dist/server.js"]