feat: 使用 PubSub 进行消息广播。

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

@@ -1,6 +1,7 @@
 import { PipelineTask } from './../pipeline-task.entity';
 import { PipelineUnits } from '../enums/pipeline-units.enum';
 import { Field, HideField, ObjectType } from '@nestjs/graphql';
+import { Type } from 'class-transformer';
 
 @ObjectType()
 export class PipelineTaskLogMessage {
@@ -9,6 +10,7 @@ export class PipelineTaskLogMessage {
   @Field(() => PipelineUnits, { nullable: true })
   unit?: PipelineUnits;
   @Field()
+  @Type(() => Date)
   time: Date;
   @Field()
   message: string;