Create Dockerfile

Dockerfile

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+FROM node:18-alpine
+
+WORKDIR /app
+
+COPY package*.json ./
+RUN npm install
+
+COPY . .
+
+# Build frontend + transpile backend
+RUN npm install
+
+# Required port for Hugging Face
+EXPOSE 7860
+
+# Run backend server
+CMD ["npm", "start"]