feat(pipeline-task): 流水线任务日志订阅接口。

src/pipeline-tasks/pipeline-tasks.module.ts

@@ -11,7 +11,10 @@ import { PipelineTaskConsumer } from './pipeline-task.consumer';
 import {
   PIPELINE_TASK_QUEUE,
   PIPELINE_TASK_LOG_QUEUE,
+  PIPELINE_TASK_LOG_PUBSUB,
 } from './pipeline-tasks.constants';
+import { PipelineTaskLogsService } from './pipeline-task-logs.service';
+import { PubSub } from 'apollo-server-express';
 
 @Module({
   imports: [
@@ -29,6 +32,11 @@ import {
     PipelineTasksService,
     PipelineTasksResolver,
     PipelineTaskConsumer,
+    PipelineTaskLogsService,
+    {
+      provide: Symbol(PIPELINE_TASK_LOG_PUBSUB),
+      useValue: new PubSub(),
+    },
   ],
 })
 export class PipelineTasksModule {}