fix(deploy): align staging frontend runtime with production images

adminfront/Dockerfile

@@ -1,29 +1,40 @@
-FROM node:lts
+FROM node:lts AS build
 
 WORKDIR /workspace
 
-# Set CI environment variable to true to avoid TTY issues with pnpm
 ENV CI=true
+ENV ADMINFRONT_BUILD_OUT_DIR=/workspace/adminfront/dist
 
-# Install pnpm
 RUN corepack enable && corepack prepare pnpm@10.5.2 --activate
 
-# Copy workspace configs and common package
-COPY pnpm-workspace.yaml pnpm-lock.yaml ./
+COPY package.json pnpm-lock.yaml pnpm-workspace.yaml ./
 COPY common ./common
 COPY adminfront ./adminfront
 
-# Install dependencies for the workspace
-RUN pnpm install --filter adminfront... --filter baron-sso... --no-frozen-lockfile --ignore-scripts
+ARG VITE_ADMIN_PUBLIC_URL
+ARG VITE_OIDC_AUTHORITY
+ARG VITE_OIDC_CLIENT_ID
+ARG ORGFRONT_URL
+ENV VITE_ADMIN_PUBLIC_URL=$VITE_ADMIN_PUBLIC_URL
+ENV VITE_OIDC_AUTHORITY=$VITE_OIDC_AUTHORITY
+ENV VITE_OIDC_CLIENT_ID=$VITE_OIDC_CLIENT_ID
+ENV ORGFRONT_URL=$ORGFRONT_URL
 
-# 프로덕션 서빙을 위한 serve 패키지 글로벌 설치
-RUN npm install -g serve
+RUN pnpm install --frozen-lockfile --ignore-scripts
 
 WORKDIR /workspace/adminfront
+RUN npm run build
+
+FROM node:24-alpine AS production
+
+WORKDIR /app
+ENV NODE_ENV=production
+ENV FRONTEND_DIST_DIR=/app/dist
+ENV PORT=5173
+
+COPY scripts/serve_frontend_prod.mjs ./serve_frontend_prod.mjs
+COPY --from=build /workspace/adminfront/dist ./dist
 
-# Vite 기본 포트
 EXPOSE 5173
 
-# 실행 스크립트: APP_ENV에 따라 개발 서버 또는 빌드 후 서빙
-RUN chmod +x ./scripts/runtime-mode.sh
-CMD ["sh", "./scripts/runtime-mode.sh"]
+CMD ["node", "./serve_frontend_prod.mjs"]