fix(core): Improve streaming support and timeout handling; add browser streaming & timeout tests and README clarifications

test/test.streaming.browser.ts

@@ -0,0 +1,41 @@
+import { tap, expect } from '@git.zone/tstest/tapbundle';
+import { SmartRequest } from '../ts/index.js';
+
+tap.test('browser: should send Uint8Array using buffer() method', async () => {
+  const testData = new Uint8Array([72, 101, 108, 108, 111]); // "Hello" in ASCII
+  
+  const smartRequest = SmartRequest.create()
+    .url('https://httpbin.org/post')
+    .buffer(testData, 'application/octet-stream')
+    .method('POST');
+  
+  const response = await smartRequest.post();
+  const data = await response.json();
+  
+  expect(data).toHaveProperty('data');
+  expect(data.headers['Content-Type']).toEqual('application/octet-stream');
+});
+
+tap.test('browser: should send web ReadableStream using stream() method', async () => {
+  // Create a web ReadableStream
+  const encoder = new TextEncoder();
+  const stream = new ReadableStream({
+    start(controller) {
+      controller.enqueue(encoder.encode('Test stream data'));
+      controller.close();
+    }
+  });
+  
+  const smartRequest = SmartRequest.create()
+    .url('https://httpbin.org/post')
+    .stream(stream, 'text/plain')
+    .method('POST');
+  
+  const response = await smartRequest.post();
+  const data = await response.json();
+  
+  expect(data).toHaveProperty('data');
+  // httpbin should receive the streamed data
+});
+
+export default tap.start();