Dockerfile

# Slim Node.js 20 — no bloat
FROM node:20-slim

WORKDIR /app

# Copy and install from lockfile (deterministic, uses prebuilt sharp binaries)
COPY package.json package-lock.json ./
RUN npm ci --omit=dev

# Copy application code (respects .dockerignore)
COPY . .

# Hugging Face requires port 7860
EXPOSE 7860
ENV PORT=7860
ENV NODE_OPTIONS="--dns-result-order=ipv4first"

CMD ["node", "server.js"]