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/nginx.conf

@@ -0,0 +1,34 @@
+server {
+    listen       80;
+    server_name  _;
+    root         /usr/share/nginx/html;
+    index        index.html;
+
+    # Vue Router history 模式：所有未匹配的路径回落到 index.html
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+
+    # Vite 构建产物带 hash，可安全设置长期缓存
+    location /assets/ {
+        expires 1y;
+        add_header Cache-Control "public, immutable";
+    }
+
+    # gzip 压缩
+    gzip            on;
+    gzip_min_length 1024;
+    gzip_comp_level 6;
+    gzip_types
+        text/plain
+        text/css
+        text/javascript
+        application/javascript
+        application/json
+        application/xml
+        image/svg+xml;
+
+    # 基础安全头
+    add_header X-Content-Type-Options "nosniff";
+    add_header X-Frame-Options        "SAMEORIGIN";
+}