refactor: 完成静态网站转换，移除所有 CMS 和动态功能

- 删除数据库相关代码 (src/db/)
- 删除 API 路由 (src/app/api/)
- 删除认证相关代码 (src/lib/auth/, src/providers/)
- 删除监控和安全中间件 (src/lib/security/, src/lib/monitoring/)
- 删除 hooks (use-news, use-products, use-services)
- 更新组件为静态数据源
- 添加 nginx 静态配置和部署脚本
- 添加 static-link 组件

src/middleware.ts

@@ -1,53 +0,0 @@
-import { NextResponse } from 'next/server';
-import type { NextRequest } from 'next/server';
-
-export function middleware(request: NextRequest) {
-  const { pathname } = request.nextUrl;
-
-  if (pathname.startsWith('/api/auth')) {
-    return NextResponse.next();
-  }
-
-  if (pathname.startsWith('/api/admin')) {
-    return NextResponse.next();
-  }
-
-  if (pathname.startsWith('/api/content')) {
-    return NextResponse.next();
-  }
-
-  const legacyApiPaths = [
-    '/api/config',
-    '/api/health',
-  ];
-
-  const isLegacyApi = legacyApiPaths.some(path => 
-    pathname.startsWith(path) && !pathname.includes('/v1/') && !pathname.includes('/v2/')
-  );
-
-  if (isLegacyApi) {
-    const url = request.nextUrl.clone();
-    url.pathname = pathname.replace('/api/', '/api/v1/');
-    
-    return NextResponse.rewrite(url);
-  }
-
-  if (pathname.startsWith('/api/docs') || pathname === '/api-docs') {
-    const response = NextResponse.next();
-    response.headers.set('X-API-Version', 'none');
-    return response;
-  }
-
-  const versionMatch = pathname.match(/\/api\/v(\d+)\//);
-  if (versionMatch) {
-    const response = NextResponse.next();
-    response.headers.set('X-API-Version', `v${versionMatch[1]}`);
-    return response;
-  }
-
-  return NextResponse.next();
-}
-
-export const config = {
-  matcher: '/api/:path*',
-};