feat(workflow): 添加流程图与审批记录获取功能

- 在 RemoteWorkflowService 中新增 flowHisTaskList 方法定义
- 实现 RemoteWorkflowServiceImpl 中的 flowHisTaskList 方法
- 添加 RemoteWorkflowServiceMock 中的降级处理实现
- 扩展 WorkflowService 接口定义新方法
- 实现 WorkflowServiceImpl 中的业务逻辑处理
- 集成 flwInstanceService 的历史任务列表查询功能

ruoyi-api/ruoyi-api-workflow/src/main/java/org/dromara/workflow/api/RemoteWorkflowService.java

@@ -54,6 +54,14 @@ public interface RemoteWorkflowService {
      */
     Map<String, Object> instanceVariable(Long instanceId);
 
+    /**
+     * 获取流程图与审批记录
+     *
+     * @param businessId 业务id
+     * @return 审批记录与实例信息
+     */
+    Map<String, Object> flowHisTaskList(String businessId);
+
     /**
      * 按照业务id查询流程实例id
      *

ruoyi-api/ruoyi-api-workflow/src/main/java/org/dromara/workflow/api/RemoteWorkflowServiceMock.java

@@ -45,6 +45,12 @@ public class RemoteWorkflowServiceMock implements RemoteWorkflowService {
         return null;
     }
 
+    @Override
+    public Map<String, Object> flowHisTaskList(String businessId) {
+        log.warn("服务调用异常 -> 降级处理");
+        return null;
+    }
+
     @Override
     public Long getInstanceIdByBusinessId(String businessId) {
         log.warn("服务调用异常 -> 降级处理");

ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/dubbo/RemoteWorkflowServiceImpl.java

@@ -48,6 +48,11 @@ public class RemoteWorkflowServiceImpl implements RemoteWorkflowService {
         return workflowService.instanceVariable(instanceId);
     }
 
+    @Override
+    public Map<String, Object> flowHisTaskList(String businessId) {
+        return workflowService.flowHisTaskList(businessId);
+    }
+
     @Override
     public Long getInstanceIdByBusinessId(String businessId) {
         return workflowService.getInstanceIdByBusinessId(businessId);

ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/service/WorkflowService.java

@@ -53,6 +53,14 @@ public interface WorkflowService {
      */
     Map<String, Object> instanceVariable(Long instanceId);
 
+    /**
+     * 获取流程图与审批记录
+     *
+     * @param businessId 业务id
+     * @return 审批记录与实例信息
+     */
+    Map<String, Object> flowHisTaskList(String businessId);
+
     /**
      * 按照业务id查询流程实例id
      *

ruoyi-modules/ruoyi-workflow/src/main/java/org/dromara/workflow/service/impl/WorkflowServiceImpl.java

@@ -92,6 +92,17 @@ public class WorkflowServiceImpl implements WorkflowService {
         return flwInstanceService.instanceVariable(instanceId);
     }
 
+    /**
+     * 获取流程图与审批记录
+     *
+     * @param businessId 业务id
+     * @return 审批记录与实例信息
+     */
+    @Override
+    public Map<String, Object> flowHisTaskList(String businessId) {
+        return flwInstanceService.flowHisTaskList(businessId);
+    }
+
     /**
      * 按照业务id查询流程实例id
      *