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

frontend/docker/default.conf

@@ -0,0 +1,91 @@
+# 考培练系统前端 Nginx 配置
+server {
+    listen 80;
+    server_name localhost;
+    root /usr/share/nginx/html;
+    index index.html index.htm;
+
+    # 日志配置
+    access_log /var/log/nginx/access.log;
+    error_log /var/log/nginx/error.log;
+
+    # 静态资源缓存配置
+    location ~* \.(js|css|png|jpg|jpeg|gif|ico|svg|woff|woff2|ttf|eot)$ {
+        expires 1y;
+        add_header Cache-Control "public, immutable";
+        add_header Vary Accept-Encoding;
+        access_log off;
+    }
+
+    # HTML 文件不缓存
+    location ~* \.html$ {
+        expires -1;
+        add_header Cache-Control "no-cache, no-store, must-revalidate";
+        add_header Pragma "no-cache";
+    }
+
+    # API 代理配置
+    location /api/ {
+        proxy_pass http://kaopeilian-backend:8000;
+        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 300s;
+        proxy_send_timeout 300s;
+    }
+
+    # WebSocket 代理配置
+    location /ws/ {
+        proxy_pass http://kaopeilian-backend:8000;
+        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_read_timeout 86400;
+    }
+
+    # SPA 路由支持
+    location / {
+        try_files $uri $uri/ /index.html;
+        add_header X-Frame-Options "SAMEORIGIN" always;
+        add_header X-Content-Type-Options "nosniff" always;
+        add_header X-XSS-Protection "1; mode=block" always;
+    }
+
+    # 健康检查端点
+    location /health {
+        access_log off;
+        return 200 "healthy\n";
+        add_header Content-Type text/plain;
+    }
+
+    # 安全配置
+    location ~ /\. {
+        deny all;
+        access_log off;
+        log_not_found off;
+    }
+
+    location ~ ~$ {
+        deny all;
+        access_log off;
+        log_not_found off;
+    }
+
+    # 错误页面配置
+    error_page 404 /index.html;
+    error_page 500 502 503 504 /50x.html;
+    
+    location = /50x.html {
+        root /usr/share/nginx/html;
+    }
+}