feat: 接入公开币种目录并统一多币种金额与语言初始化处理

src/types/api/currency.ts

@@ -0,0 +1,10 @@
+export type PublicCurrencyRow = {
+  code: string;
+  name: string;
+  decimal_places: number;
+  is_bettable: boolean;
+};
+
+export type PublicCurrencyListData = {
+  items: PublicCurrencyRow[];
+};