fix: 处理空值计算，确保待来票金额与未来票金额一致

gongchunyi

2026-01-16 79a570ae5f497e30337e7dd002450072e1b21cc2

 src/main/java/com/ruoyi/account/service/AccountIncomeService.java

@@ -18,4 +18,8 @@
    void accountIncomeExport(HttpServletResponse response, AccountIncome accountIncome);

    List<AccountDto3> reportIncome();

    AccountIncome getByInvoiceNumber(String purchaseContractNumber);

    List<AccountIncome> getByInvoiceNumberList(String purchaseContractNumber);
}