实时结算余额

src/main/java/com/izouma/nineth/service/UserBalanceService.java

@@ -540,6 +540,7 @@ public class UserBalanceService {
 
         userBalance.setLastBalance(userBalance.getBalance());
         userBalance.setBalance(userBalance.getBalance().add(amount));
+        userBalanceRepo.save(userBalance);
 
         balanceRecordRepo.save(BalanceRecord.builder()
                 .time(LocalDateTime.now())