feat(pipeline-tasks): 添加 部署任务查询接口和任务日志推送。

src/pipeline-tasks/models/pipeline-task-log-message.module.ts

@@ -6,16 +6,19 @@ import { Field, HideField, ObjectType } from '@nestjs/graphql';
 export class PipelineTaskLogMessage {
   @HideField()
   task: PipelineTask;
-  @Field(() => PipelineUnits)
-  unit: PipelineUnits;
+  @Field(() => PipelineUnits, { nullable: true })
+  unit?: PipelineUnits;
+  @Field()
   time: Date;
+  @Field()
   message: string;
 
-  static create(task: PipelineTask, message: string) {
+  static create(task: PipelineTask, unit: PipelineUnits, message: string) {
     return Object.assign(new PipelineTaskLogMessage(), {
       task,
       message,
       time: new Date(),
+      unit,
     });
   }
 }