feat: 添加 CORS 支持，处理预检请求并更新 API 响应头

src/app/api/search/resources/route.ts

@@ -1,23 +1,31 @@
 import { NextResponse } from 'next/server';
 
 import { getAvailableApiSites, getCacheTime } from '@/lib/config';
+import { addCorsHeaders, handleOptionsRequest } from '@/lib/cors';
 
 export const runtime = 'edge';
 
+// 处理OPTIONS预检请求（OrionTV客户端需要）
+export async function OPTIONS() {
+  return handleOptionsRequest();
+}
+
 // OrionTV 兼容接口
 export async function GET() {
   try {
     const apiSites = await getAvailableApiSites();
     const cacheTime = await getCacheTime();
 
-    return NextResponse.json(apiSites, {
+    const response = NextResponse.json(apiSites, {
       headers: {
         'Cache-Control': `public, max-age=${cacheTime}, s-maxage=${cacheTime}`,
         'CDN-Cache-Control': `public, s-maxage=${cacheTime}`,
         'Vercel-CDN-Cache-Control': `public, s-maxage=${cacheTime}`,
       },
     });
+    return addCorsHeaders(response);
   } catch (error) {
-    return NextResponse.json({ error: '获取资源失败' }, { status: 500 });
+    const response = NextResponse.json({ error: '获取资源失败' }, { status: 500 });
+    return addCorsHeaders(response);
   }
 }