fix(api): 升级行情解析器正则规则，兼容 BRK.B 等包含特殊字符的股票代码

app/api/cron/fetch-prices/route.ts

@@ -31,7 +31,7 @@ function parseMarketDate(rawString: string): string {
 }
 
 async function fetchStockPrice(asset: { symbol: string; exchange: string | null }): Promise<{ price: string | null; rawResponse: string | null }> {
-  const cleanSymbol = asset.symbol.trim().toUpperCase().replace(/[^0-9A-Z]/g, '');
+  const cleanSymbol = asset.symbol.trim().toUpperCase().replace(/[^0-9A-Z.\-]/g, '');
   let tCode: string;
 
   switch (asset.exchange) {
@@ -50,7 +50,7 @@ async function fetchStockPrice(asset: { symbol: string; exchange: string | null
       break;
   }
 
-  const response = await fetch(`https://qt.gtimg.cn/q=${tCode}`, { cache: 'no-store' });
+  const response = await fetch(`https://sqt.gtimg.cn/q=${tCode}`, { cache: 'no-store' });
   const arrayBuffer = await response.arrayBuffer();
   const decoder = new TextDecoder('gbk');
   const text = decoder.decode(arrayBuffer);