Rename proto and Nexus service name

Author: rkannan82

temporal/api/worker/v1/worker_nexus_service_commands.proto

@@ -17,7 +17,7 @@ option csharp_namespace = "Temporalio.Api.Worker.V1";
 //
 // COMMUNICATION PROTOCOL:
 // - Transport: Nexus tasks on task queue
-// - Server identifier: "sys-worker-service"
+// - Service name: "temporal.api.worker.v1.WorkerService"
 // - Task queue: /temporal-sys/worker-commands/{namespace}/{worker_grouping_key}
 //
 // WORKER COMMANDS CONVENTIONS:
@@ -36,14 +36,14 @@ option csharp_namespace = "Temporalio.Api.Worker.V1";
 // --)
 
 // Request payload for the "cancel-activities" Nexus operation.
-message CancelActivitiesRequestPayload {
+message CancelActivitiesRequest {
     // Task tokens identifying the activities to cancel.
     // Each token corresponds to a specific activity task that the worker received.
     repeated bytes task_tokens = 1;
 }
 
 // Response payload for the "cancel-activities" Nexus operation.
-message CancelActivitiesResponsePayload {
+message CancelActivitiesResponse {
     // Empty for now. Can be extended to include cancellation status per activity.
 }