Use native Chrome for Reddit login handoff

tests/browser-external-chrome.test.ts

@@ -57,7 +57,7 @@ describe('BrowserClient external Chrome', () => {
     expect(runtime.launchPersistentContext).toHaveBeenCalledOnce();
   });
 
-  it('opens the login page for a human without submitting credentials', async () => {
+  it('does not control external Chrome during native human login', async () => {
     process.env.CHROME_CDP_URL = 'http://127.0.0.1:9222';
     const page = {
       goto: vi.fn().mockResolvedValue(undefined),
@@ -79,11 +79,8 @@ describe('BrowserClient external Chrome', () => {
     await client.initialize();
 
     await expect(client.login()).resolves.toBe(false);
-    expect(page.bringToFront).toHaveBeenCalledOnce();
-    expect(page.goto).toHaveBeenCalledWith(
-      'https://www.reddit.com/login',
-      { waitUntil: 'domcontentloaded' },
-    );
+    expect(page.bringToFront).not.toHaveBeenCalled();
+    expect(page.goto).not.toHaveBeenCalled();
     expect(page.fill).not.toHaveBeenCalled();
     expect(client.getSessionState()).toBe('login-required');
   });