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/app/not-found.tsx

@@ -1,6 +1,6 @@
 'use client';
 
-import Link from 'next/link';
+import { StaticLink } from '@/components/ui/static-link';
 import { Button } from '@/components/ui/button';
 import { Home, ArrowLeft, Search } from 'lucide-react';
 
@@ -13,7 +13,7 @@ export default function NotFound() {
             <h1 className="text-[120px] font-bold text-[#C41E3A] leading-none mb-4">
               404
             </h1>
-            <div className="w-32 h-1 bg-[#C41E3A] mx-auto mb-6"></div>
+            <div className="w-32 h-1 bg-[#C41E3A] mx-auto mb-6" />
           </div>
 
           <h2 className="text-3xl font-bold text-[#1C1C1C] mb-4">
@@ -31,10 +31,10 @@ export default function NotFound() {
               asChild
               className="bg-[#C41E3A] hover:bg-[#A01830] text-white"
             >
-              <Link href="/">
+              <StaticLink href="/">
                 <Home className="w-5 h-5 mr-2" />
                 返回首页
-              </Link>
+              </StaticLink>
             </Button>
 
             <Button
@@ -53,7 +53,7 @@ export default function NotFound() {
             </h3>
 
             <div className="grid grid-cols-1 sm:grid-cols-2 gap-4">
-              <Link
+              <StaticLink
                 href="/about"
                 className="flex items-center p-4 bg-white rounded-lg hover:shadow-md transition-shadow group"
               >
@@ -64,9 +64,9 @@ export default function NotFound() {
                   <div className="font-semibold text-[#1C1C1C]">关于我们</div>
                   <div className="text-sm text-[#5C5C5C]">了解睿新致远</div>
                 </div>
-              </Link>
+              </StaticLink>
 
-              <Link
+              <StaticLink
                 href="/services"
                 className="flex items-center p-4 bg-white rounded-lg hover:shadow-md transition-shadow group"
               >
@@ -77,9 +77,9 @@ export default function NotFound() {
                   <div className="font-semibold text-[#1C1C1C]">核心业务</div>
                   <div className="text-sm text-[#5C5C5C]">我们的服务</div>
                 </div>
-              </Link>
+              </StaticLink>
 
-              <Link
+              <StaticLink
                 href="/products"
                 className="flex items-center p-4 bg-white rounded-lg hover:shadow-md transition-shadow group"
               >
@@ -90,9 +90,9 @@ export default function NotFound() {
                   <div className="font-semibold text-[#1C1C1C]">产品服务</div>
                   <div className="text-sm text-[#5C5C5C]">企业级产品</div>
                 </div>
-              </Link>
+              </StaticLink>
 
-              <Link
+              <StaticLink
                 href="/cases"
                 className="flex items-center p-4 bg-white rounded-lg hover:shadow-md transition-shadow group"
               >
@@ -103,15 +103,15 @@ export default function NotFound() {
                   <div className="font-semibold text-[#1C1C1C]">成功案例</div>
                   <div className="text-sm text-[#5C5C5C]">客户故事</div>
                 </div>
-              </Link>
+              </StaticLink>
             </div>
           </div>
 
           <div className="mt-8 text-sm text-[#5C5C5C]">
             如果您认为这是一个错误，请{' '}
-            <Link href="/contact" className="text-[#C41E3A] hover:underline">
+            <StaticLink href="/contact" className="text-[#C41E3A] hover:underline">
               联系我们
-            </Link>
+            </StaticLink>
           </div>
         </div>
       </div>