Initial commit

Docker Backend/Dockerfile

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+FROM node:20-alpine
+
+# Install dependencies for better-sqlite3 if needed later
+RUN apk add --no-cache python3 make g++
+
+# Create app directory
+WORKDIR /app
+
+# Copy package files
+COPY package*.json ./
+
+# Install dependencies (npm install instead of ci for flexibility)
+RUN npm install --omit=dev
+
+# Copy application files
+COPY . .
+
+# Create necessary directories
+RUN mkdir -p /app/cache/previews \
+    && mkdir -p /app/output \
+    && mkdir -p /app/fonts
+
+# Expose port
+EXPOSE 4000
+
+# Health check
+HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
+  CMD node -e "require('http').get('http://localhost:4000/health', (r) => process.exit(r.statusCode === 200 ? 0 : 1))"
+
+# Start application
+CMD ["node", "src/server.js"]