Add Dockerfile

Dockerfile

@@ -0,0 +1,16 @@
+FROM node:20-alpine AS builder
+WORKDIR /app
+COPY package*.json ./
+RUN npm install
+COPY . .
+RUN npm run build
+
+FROM node:20-alpine AS runner
+WORKDIR /app
+ENV NODE_ENV=production
+ENV PORT=3000
+COPY package*.json ./
+RUN npm install --omit=dev
+COPY --from=builder /app/dist ./dist
+EXPOSE 3000
+CMD ["node", "dist/server.cjs"]