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docker/Dockerfile.backend

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+FROM node:18-alpine
+
+WORKDIR /app
+
+# Install curl for healthchecks
+RUN apk add --no-cache curl
+
+# Copy package files
+COPY package*.json ./
+
+# Install dependencies
+RUN npm install 2>/dev/null || npm install --legacy-peer-deps
+
+# Copy source code
+COPY src ./src
+
+# Create logs directory
+RUN mkdir -p logs
+
+# Expose port
+EXPOSE 3000
+
+# Health check
+HEALTHCHECK --interval=10s --timeout=5s --retries=5 \
+  CMD curl -f http://localhost:3000/api/health || exit 1
+
+# Start application
+CMD ["node", "src/index.js"]