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/components/sections/hero-section-atoms.tsx

@@ -2,7 +2,7 @@
 
 import { useEffect, useState } from 'react';
 import { motion } from 'framer-motion';
-import Link from 'next/link';
+import { StaticLink } from '@/components/ui/static-link';
 import { RippleButton, SealButton } from '@/components/ui/ripple-button';
 import { MagneticButton, BlurReveal, CounterWithEffect } from '@/lib/animations';
 import { COMPANY_INFO, STATS } from '@/lib/constants';
@@ -102,12 +102,12 @@ export function HeroButtons({ isVisible }: HeroContentProps) {
       className="flex flex-col sm:flex-row items-center justify-center gap-4 mb-8"
     >
       <MagneticButton strength={0.4}>
-        <Link href="/contact">
+        <StaticLink href="/contact">
           <SealButton size="lg" className="min-w-45">
             立即咨询
             <ArrowRight className="w-4 h-4 ml-2" />
           </SealButton>
-        </Link>
+        </StaticLink>
       </MagneticButton>
       <MagneticButton strength={0.4}>
         <RippleButton 
@@ -157,7 +157,7 @@ export function HeroStats() {
 
   useEffect(() => {
     const statsEl = document.getElementById('stats-section');
-    if (!statsEl) return;
+    if (!statsEl) {return;}
     
     const observer = new IntersectionObserver(
       ([entry]) => {