Ajoutez des fichiers projet.

ndf/public/backend/DockerfileNDF.backend

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+FROM node:18-alpine
+
+WORKDIR /app
+
+# Copy package files
+COPY package*.json ./
+
+# Install dependencies (including pdfkit)
+RUN npm ci --only=production
+
+# Copy application code
+COPY . .
+
+# Expose port
+EXPOSE 3024
+
+# Start the server
+CMD ["node", "server.js"]