Add bank code to BankCardInfoSub interface

- Added a new property `bankCode` to the `BankCardInfoSub` interface in wallet.ts to include the bank code information, enhancing the data structure for bank card details.

app/types/api/wallet.ts

@@ -115,6 +115,8 @@ export interface BankCardInfoSub {
   realName: string
   /** 银行名称 */
   bankName: string
+  /** 银行代码 */
+  bankCode: string
 }
 
 /**