first commit

Dockerfile

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+# Build frontend + backend
+FROM node:22-bookworm-slim AS build
+WORKDIR /app
+
+COPY package.json package-lock.json* ./
+COPY packages/backend/package.json packages/backend/
+COPY packages/frontend/package.json packages/frontend/
+
+RUN npm install
+
+COPY packages ./packages
+RUN npm run build -w @sejong-office/frontend \
+  && npm run build -w @sejong-office/backend
+
+# Runtime
+FROM node:22-bookworm-slim AS runtime
+WORKDIR /app
+ENV NODE_ENV=production
+ENV TEMP_DIR=/tmp/sejong
+ENV PORT=3000
+
+COPY package.json package-lock.json* ./
+COPY packages/backend/package.json packages/backend/package.json
+RUN npm install --omit=dev -w @sejong-office/backend && npm cache clean --force
+
+COPY --from=build /app/packages/backend/dist ./packages/backend/dist
+COPY --from=build /app/packages/backend/public ./packages/backend/public
+
+WORKDIR /app/packages/backend
+ENV TEMP_DIR=/tmp/sejong
+RUN mkdir -p /tmp/sejong
+
+EXPOSE 3000
+CMD ["node", "dist/index.js"]