fix(ui): 修复现价变量映射错误，修正负收益绿色显示丢失负号的 Bug

src/actions/portfolio.ts

@@ -37,6 +37,7 @@ interface Position {
   floatingPnlPercent: string;
   cumulativePnlNative: string;
   cumulativePnlPercent: string;
+  latestPrice: string;
   transactions: TransactionRecord[];
 }
 
@@ -399,6 +400,7 @@ export async function getPortfolioPositions(): Promise<Position[]> {
       floatingPnlPercent: floatingPnlPercent.toString(),
       cumulativePnlNative: cumulativePnlNative.toString(),
       cumulativePnlPercent: cumulativePnlPercent.toString(),
+      latestPrice: holding.latestPrice,
       transactions: holding.transactions,
     });
   }