feat: 更新服务方法，显式接受用户ID参数，简化上下文调用

backend/app/services/wallet_test.go

@@ -58,7 +58,7 @@ func (s *WalletTestSuite) Test_GetWallet() {
 		models.OrderQuery.WithContext(ctx).Create(o1, o2)
 
 		Convey("should return balance and transactions", func() {
-			res, err := Wallet.GetWallet(ctx)
+			res, err := Wallet.GetWallet(ctx, u.ID)
 			So(err, ShouldBeNil)
 			So(res.Balance, ShouldEqual, 50.0)
 			So(len(res.Transactions), ShouldEqual, 2)
@@ -82,7 +82,7 @@ func (s *WalletTestSuite) Test_Recharge() {
 
 		Convey("should create recharge order", func() {
 			form := &user_dto.RechargeForm{Amount: 100.0}
-			res, err := Wallet.Recharge(ctx, form)
+			res, err := Wallet.Recharge(ctx, u.ID, form)
 			So(err, ShouldBeNil)
 			So(res.OrderID, ShouldNotBeEmpty)