Remove MetadataGenerator re-export from client and update index exports for clarity

Author: YunchuWang

packages/durabletask-js/src/client/client.ts

@@ -25,9 +25,6 @@ import { HistoryEvent } from "../orchestration/history-event";
 import { convertProtoHistoryEvent } from "../utils/history-event-converter";
 import { Logger, ConsoleLogger } from "../types/logger.type";
 
-// Re-export MetadataGenerator for backward compatibility
-export { MetadataGenerator } from "../utils/grpc-helper.util";
-
 /**
  * Options for scheduling a new orchestration instance.
  */

packages/durabletask-js/src/index.ts

@@ -2,7 +2,8 @@
 // Licensed under the MIT License.
 
 // Client and Worker
-export { TaskHubGrpcClient, TaskHubGrpcClientOptions, StartOrchestrationOptions, MetadataGenerator } from "./client/client";
+export { TaskHubGrpcClient, TaskHubGrpcClientOptions, StartOrchestrationOptions } from "./client/client";
+export { MetadataGenerator } from "./utils/grpc-helper.util";
 export { TaskHubGrpcWorker, TaskHubGrpcWorkerOptions } from "./worker/task-hub-grpc-worker";
 
 // Contexts