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Dockerfile

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+FROM node:20-bookworm-slim
+
+# Install native deps required for HEIC → JPEG
+RUN apt-get update && apt-get install -y \
+  libheif1 libheif-dev \
+  libvips libvips-dev \
+  && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /usr/src/app
+
+# Install node deps
+COPY package.json package-lock.json* ./
+RUN npm ci || npm install
+
+# Copy app code
+COPY server.js ./
+
+ENV PORT=8080
+EXPOSE 8080
+
+CMD ["node", "server.js"]