chore(config): 更新项目构建与测试配置

- 升级 Next.js 配置，移除 webpackBuildWorker 实验特性
- 更新 Tailwind 设计令牌系统，对齐新品牌色与字体
- 配置 TypeScript strict 模式 (noUncheckedIndexedAccess)
- 更新 ESLint 规则与 Jest 测试配置
- 添加 prisma.config.ts 数据库配置

next.config.mjs

@@ -2,20 +2,36 @@ const cdnDomain = process.env.CDN_DOMAIN || '';
 
 const nextConfig = {
   distDir: 'dist',
-  output: 'export',
   assetPrefix: cdnDomain || undefined,
   images: {
     unoptimized: true,
+    formats: ['image/avif', 'image/webp'],
   },
   compress: true,
   poweredByHeader: false,
   reactStrictMode: true,
   experimental: {
-    optimizePackageImports: ['lucide-react'],
+    optimizePackageImports: ['lucide-react', 'framer-motion'],
   },
   compiler: {
     removeConsole: process.env.NODE_ENV === 'production',
   },
+  generateEtags: true,
+  httpAgentOptions: {
+    keepAlive: true,
+  },
+  async headers() {
+    return [
+      {
+        source: '/(.*)',
+        headers: [
+          { key: 'X-Content-Type-Options', value: 'nosniff' },
+          { key: 'X-Frame-Options', value: 'DENY' },
+          { key: 'X-XSS-Protection', value: '1; mode=block' },
+        ],
+      },
+    ];
+  },
 };
 
 export default nextConfig;