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/AccountExpenseService.java

@@ -27,4 +27,6 @@
    Map<String,List<String>> analysis();

    AccountExpense getByInvoiceNumber(String purchaseContractNumber);

    List<AccountExpense> getByInvoiceNumberList(String purchaseContractNumber);
}