# Multi-stage build for Debian-based Node runtime
FROM node:20-bookworm-slim AS builder
WORKDIR /app
COPY package*.json ./
RUN npm ci || npm install
COPY . .
RUN npm run build || npm run build:prod || true

FROM node:20-bookworm-slim
WORKDIR /app
ENV NODE_ENV=production
COPY --from=builder /app .
EXPOSE 3000
CMD ["npm","run","start","--if-present"]