feat(pipelines): list commit logs 使用直接订阅。

替代了先查询再订阅，确保数据不丢失。

src/pipelines/pipelines.resolver.ts

@@ -1,4 +1,4 @@
-import { Args, Mutation, Query, Resolver } from '@nestjs/graphql';
+import { Args, Mutation, Query, Resolver, Subscription } from '@nestjs/graphql';
 import { CreatePipelineInput } from './dtos/create-pipeline.input';
 import { UpdatePipelineInput } from './dtos/update-pipeline.input';
 import { Pipeline } from './pipeline.entity';
@@ -43,8 +43,15 @@ export class PipelinesResolver {
     return await this.service.remove(id);
   }
 
-  @Query(() => String)
+  @Subscription(() => LogList, {
+    resolve: (value) => {
+      return value;
+    },
+  })
   async listLogsForPipeline(@Args('id', { type: () => String }) id: string) {
-    return await this.service.listLogsForPipeline(id);
+    const job = await this.service.listLogsForPipeline(id);
+    return (async function* () {
+      yield await job.finished();
+    })();
   }
 }