FROM node:22-alpine

# Lightweight build deps for any future native modules (qrcode is pure JS;
# baileys uses precompiled libsignal). git is needed by some pnpm workflows.
RUN apk add --no-cache git python3 make g++ \
    && corepack enable \
    && corepack prepare pnpm@9.12.0 --activate

WORKDIR /workspace
ENV PNPM_HOME=/workspace/.pnpm-store
CMD ["tail", "-f", "/dev/null"]