feat(response): Add streamNode() method for Node.js stream support; update tests

ts/core_fetch/types.ts

@@ -7,9 +7,6 @@ export * from '../core_base/types.js';
  * Fetch-specific response extensions
  */
 export interface IFetchResponse<T = any> extends baseTypes.ICoreResponse<T> {
-  // Node.js stream method that throws in browser
-  streamNode(): never;
-
   // Access to raw Response object
   raw(): Response;
 }