fix(pipelines): 任务脚本不得为空

src/pipeline-tasks/models/work-unit-metadata.model.ts

@@ -1,4 +1,6 @@
 import { Field, InputType, Int, ObjectType } from '@nestjs/graphql';
+import { Type } from 'class-transformer';
+import { IsInstance, isInstance, ValidateNested } from 'class-validator';
 import { WorkUnit } from './work-unit.model';
 
 @InputType('WorkUnitMetadataInput')
@@ -6,5 +8,9 @@ import { WorkUnit } from './work-unit.model';
 export class WorkUnitMetadata {
   @Field(() => Int)
   version = 1;
+
+  @Type(() => WorkUnit)
+  @IsInstance(WorkUnit, { each: true })
+  @ValidateNested({ each: true })
   units: WorkUnit[];
 }

src/pipeline-tasks/models/work-unit.model.ts

@@ -1,4 +1,5 @@
 import { Field, InputType, ObjectType } from '@nestjs/graphql';
+import { IsNotEmpty } from 'class-validator';
 import {
   PipelineUnits,
   PipelineUnits as PipelineUnitTypes,
@@ -9,5 +10,7 @@ import {
 export class WorkUnit {
   @Field(() => PipelineUnits)
   type: PipelineUnitTypes;
+
+  @IsNotEmpty({ each: true })
   scripts: string[];
 }