fix(approve): 修复审批流程为空时的异常处理

liyong

2026-04-30 c2ad2126d6f8423e0a5e6e20bbb91ef6bb1cffc0

 src/main/java/com/ruoyi/purchase/service/PurchaseReturnOrdersService.java

@@ -25,4 +25,6 @@


    PurchaseReturnDetailsVo getPurchaseReturnOrderDtoById(@NotNull Long id);

    void deleteById(@NotNull Long id);
}