feat: 更新余额格式化逻辑，优化钱包卡片组件以显示资产余额

src/utils/helper.ts

@@ -1,6 +1,11 @@
-export function formatBalance(amount: MaybeRefOrGetter<number>, locale: Intl.LocalesArgument = "en-US"): ComputedRef<string> {
-  return computed(() => {
-    const balance = toValue(amount);
-    return `$${balance.toLocaleString(locale, { minimumFractionDigits: 0, maximumFractionDigits: 2 })}`;
-  });
+export function formatBalance(amount: MaybeRefOrGetter<number | string>, locale: Intl.LocalesArgument = "en-US"): string {
+  let value = toValue(amount);
+  if (!value) {
+    value = 0;
+  }
+  if (typeof value === "string" && !Number.isNaN(Number(value))) {
+    value = 0;
+  }
+
+  return value.toLocaleString(locale, { minimumFractionDigits: 0, maximumFractionDigits: 2 });
 }