ci: add Dockerfile for web-antd (nginx)

Dockerfile

@@ -0,0 +1,30 @@
+# BuildFlow Web (Vben Admin - web-antd) 多阶段构建
+FROM node:22-alpine AS builder
+WORKDIR /app
+
+# 全局装 pnpm (与项目对齐)
+RUN npm install -g pnpm@9
+
+# 先拷依赖清单利用层缓存
+COPY package.json pnpm-lock.yaml pnpm-workspace.yaml turbo.json ./
+COPY apps/web-antd/package.json ./apps/web-antd/package.json
+
+# 拷贝 internal/scripts (turbo/vsh 工具链需要)
+COPY internal/ ./internal/
+COPY scripts/ ./scripts/
+
+RUN pnpm install --frozen-lockfile
+
+# 拷贝全部源码
+COPY . .
+
+# 构建 web-antd 变体 (质量门禁: lint + typecheck 内含于 build)
+RUN pnpm build:antd
+
+# ---- 运行阶段: nginx 托管静态资源 ----
+FROM nginx:1.27-alpine AS runtime
+COPY apps/web-antd/nginx.conf /etc/nginx/conf.d/default.conf 2>/dev/null || true
+COPY --from=builder /app/apps/web-antd/dist /usr/share/nginx/html
+EXPOSE 80
+HEALTHCHECK --interval=30s --timeout=3s --retries=3 CMD wget -q --spider http://127.0.0.1/ || exit 1
+CMD ["nginx", "-g", "daemon off;"]