Update .Dockerfile

.Dockerfile

@@ -1,8 +1,14 @@
-FROM node:alpine
+# Build stage
+FROM node:alpine AS build
 RUN apk add --no-cache build-base python3 linux-headers udev
 WORKDIR /app
 COPY package*.json ./
 RUN npm install
 COPY . .
 RUN npm run build
+
+# Production stage
+FROM node:alpine
+WORKDIR /app
+COPY --from=build /app .
 CMD ["npm", "start"]