Initial commit

web/server/Dockerfile

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+# Backend Dockerfile - Express Data Server
+FROM node:20-alpine
+
+WORKDIR /app
+
+# Copy package files from parent (uses express from main package.json)
+COPY package*.json ./
+
+# Install only production dependencies
+RUN npm ci --only=production
+
+# Copy server code
+COPY server/ ./server/
+
+# Create data directory
+RUN mkdir -p /data
+
+# Expose Express server port
+EXPOSE 3001
+
+# Run Express server
+CMD ["node", "server/index.js"]