添加 CI/CD 构建配置与部署文件

- deploy/Dockerfile：多阶段构建，node:24-alpine（阿里镜像）构建
  dist，nginx:alpine 作为成品镜像；构建上下文为仓库根目录
- deploy/nginx.conf：Vue Router history 模式 SPA 配置，含 gzip
  压缩和 /assets/ 长期缓存
- deploy/compose.yaml：以 zhican-admin:latest 启动服务，对外暴露
  12801 端口
- .teamcity/pipeline.yaml：main 分支触发，build/deploy 独立 step

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

deploy/Dockerfile

@@ -0,0 +1,42 @@
+# 构建上下文为仓库根目录
+# docker build -f deploy/Dockerfile -t zhican-admin:latest .
+
+# ────────────────────────────────────────────
+# Stage 1: 构建阶段
+# ────────────────────────────────────────────
+FROM node:24-alpine AS builder
+
+WORKDIR /app
+
+# 配置阿里 npm 镜像，加速依赖安装
+RUN npm config set registry https://registry.npmmirror.com
+
+# 安装 pnpm 并配置镜像
+RUN npm install -g pnpm && pnpm config set registry https://registry.npmmirror.com
+
+# 优先复制依赖描述文件，利用 Docker 层缓存
+COPY zhican/admin/package.json zhican/admin/pnpm-lock.yaml ./
+
+RUN pnpm install --frozen-lockfile
+
+# 复制源码并构建
+COPY zhican/admin/ .
+RUN pnpm run build
+
+# ────────────────────────────────────────────
+# Stage 2: 成品阶段
+# ────────────────────────────────────────────
+FROM nginx:alpine AS runner
+
+# 移除默认站点配置
+RUN rm /etc/nginx/conf.d/default.conf
+
+# 注入自定义 nginx 配置
+COPY deploy/nginx.conf /etc/nginx/conf.d/zhican-admin.conf
+
+# 拷贝构建产物
+COPY --from=builder /app/dist /usr/share/nginx/html
+
+EXPOSE 80
+
+CMD ["nginx", "-g", "daemon off;"]