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Dockerfile

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+# Use official Node.js LTS base image
+FROM node:20-slim
+
+# Create app directory
+WORKDIR /usr/src/app
+
+# Install dependencies
+COPY package*.json ./
+RUN npm ci --omit=dev
+
+# Copy app source
+COPY . .
+
+# Expose app port (change if needed)
+# EXPOSE 3000
+
+# Start app
+CMD ["node", "index.js"]