feat: 初始化考培练系统项目

- 从服务器拉取完整代码
- 按框架规范整理项目结构
- 配置 Drone CI 测试环境部署
- 包含后端(FastAPI)、前端(Vue3)、管理端

技术栈: Vue3 + TypeScript + FastAPI + MySQL

admin-frontend/nginx.conf

@@ -0,0 +1,47 @@
+server {
+    listen 80;
+    server_name localhost;
+    
+    root /usr/share/nginx/html;
+    index index.html;
+    
+    # gzip 压缩
+    gzip on;
+    gzip_vary on;
+    gzip_min_length 1024;
+    gzip_proxied any;
+    gzip_types text/plain text/css text/xml text/javascript application/javascript application/json application/xml;
+    
+    # 静态资源缓存
+    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
+        expires 30d;
+        add_header Cache-Control "public, immutable";
+    }
+    
+    # HTML 不缓存
+    location ~* \.html$ {
+        expires -1;
+        add_header Cache-Control "no-cache, no-store, must-revalidate";
+    }
+    
+    # API 代理到后端
+    location /api/ {
+        proxy_pass http://kaopeilian-admin-backend:8000/api/;
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection 'upgrade';
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+        proxy_cache_bypass $http_upgrade;
+        proxy_read_timeout 300s;
+        proxy_connect_timeout 75s;
+    }
+    
+    # SPA 路由支持
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+}
+