fix(erp): 修复流程驳回状态未正确处理的问题

- 各业务流程中增加对驳回（BACK）状态的处理
- 驳回时将业务状态还原为草稿（DRAFT），允许重新编辑和提交
- 涉及项目验收、变更、计划与收货模块的状态管理调整
- 完善流程状态与业务状态的同步更新逻辑

ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/service/impl/ErpProjectAcceptanceServiceImpl.java

@@ -357,6 +357,9 @@ public class ErpProjectAcceptanceServiceImpl implements IErpProjectAcceptanceSer
                 } else if (Objects.equals(processEvent.getStatus(), BusinessStatusEnum.INVALID.getStatus())
                     || Objects.equals(processEvent.getStatus(), BusinessStatusEnum.TERMINATION.getStatus())) {
                     acceptance.setAcceptanceStatus(OAStatusEnum.INVALID.getStatus());
+                }else if (Objects.equals(processEvent.getStatus(), BusinessStatusEnum.BACK.getStatus())) {
+                    // 流程驳回：业务状态还原为草稿，允许重新编辑和提交
+                    acceptance.setAcceptanceStatus(OAStatusEnum.DRAFT.getStatus());
                 }
                 baseMapper.updateById(acceptance);
             }

ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/service/impl/ErpProjectChangeServiceImpl.java

@@ -661,7 +661,14 @@ public class ErpProjectChangeServiceImpl implements IErpProjectChangeService {
                 String handler = Convert.toStr(params.get("handler"));
             }
             if (Objects.equals(processEvent.getStatus(), BusinessStatusEnum.FINISH.getStatus())){
+                // 流程完成：业务状态置为可用
                 projectChange.setProjectChangeStatus(OAStatusEnum.COMPLETED.getStatus());
+            } else if (Objects.equals(processEvent.getStatus(), BusinessStatusEnum.INVALID.getStatus())) {
+                // 流程作废：业务状态置为作废
+                projectChange.setProjectChangeStatus(OAStatusEnum.INVALID.getStatus());
+            } else if (Objects.equals(processEvent.getStatus(), BusinessStatusEnum.BACK.getStatus())) {
+                // 流程驳回：业务状态还原为草稿，允许重新编辑和提交
+                projectChange.setProjectChangeStatus(OAStatusEnum.DRAFT.getStatus());
             }
             baseMapper.updateById(projectChange);
         });

ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/service/impl/ErpProjectPlanServiceImpl.java

@@ -371,6 +371,11 @@ public class ErpProjectPlanServiceImpl implements IErpProjectPlanService {
             }
             if (Objects.equals(processEvent.getStatus(), BusinessStatusEnum.FINISH.getStatus())) {
                 projectPlan.setProjectPlanStatus(OAStatusEnum.COMPLETED.getStatus());
+            }else if (Objects.equals(processEvent.getStatus(), BusinessStatusEnum.INVALID.getStatus())) {
+                projectPlan.setProjectPlanStatus(OAStatusEnum.INVALID.getStatus());
+            }else if (Objects.equals(processEvent.getStatus(), BusinessStatusEnum.BACK.getStatus())) {
+                // 流程驳回：业务状态还原为草稿，允许重新编辑和提交
+                projectPlan.setProjectPlanStatus(OAStatusEnum.DRAFT.getStatus());
             }
             baseMapper.updateById(projectPlan);
         });

ruoyi-modules/ruoyi-oa/src/main/java/org/dromara/oa/erp/service/impl/ErpProjectReceivingServiceImpl.java

@@ -352,6 +352,9 @@ public class ErpProjectReceivingServiceImpl implements IErpProjectReceivingServi
                 } else if (Objects.equals(processEvent.getStatus(), BusinessStatusEnum.INVALID.getStatus())
                     || Objects.equals(processEvent.getStatus(), BusinessStatusEnum.TERMINATION.getStatus())) {
                     receiving.setReceivingStatus(OAStatusEnum.INVALID.getStatus());
+                }else if (Objects.equals(processEvent.getStatus(), BusinessStatusEnum.BACK.getStatus())) {
+                    // 流程驳回：业务状态还原为草稿，允许重新编辑和提交
+                    receiving.setReceivingStatus(OAStatusEnum.DRAFT.getStatus());
                 }
                 baseMapper.updateById(receiving);
             }