Add query stage pipeline operator task statistics to Preview Web UI

Author: koszti

core/trino-web-ui/src/main/resources/webapp-preview/src/api/webapp/api.ts

@@ -282,6 +282,11 @@ export interface QueryStageStats {
     operatorSummaries: QueryStageOperatorSummary[]
 }
 
+export interface QueryPipeline {
+    pipelineId: number
+    operatorSummaries: QueryStageOperatorSummary[]
+}
+
 export interface QueryTask {
     lastHeartbeat: string
     needsPlan: boolean
@@ -303,6 +308,7 @@ export interface QueryTask {
         totalCpuTime: string
         totalScheduledTime: string
         userMemoryReservation: string
+        pipelines: QueryPipeline[]
         firstStartTime: string
         lastStartTime: string
         lastEndTime: string