chore: remove retired native login paths

tests/native-login-gate.test.ts

@@ -1,36 +0,0 @@
-import type { AddressInfo } from 'node:net';
-import { afterEach, describe, expect, it, vi } from 'vitest';
-import { createNativeLoginGate } from '../src/native-login-gate.js';
-
-const servers: Array<ReturnType<typeof createNativeLoginGate>> = [];
-
-afterEach(async () => {
-  await Promise.all(servers.splice(0).map((server) => new Promise<void>((resolve) => {
-    server.close(() => resolve());
-  })));
-});
-
-describe('native Reddit login gate', () => {
-  it('serves VNC guidance and completes only after the explicit handoff', async () => {
-    const onComplete = vi.fn();
-    const server = createNativeLoginGate({
-      publicVncUrl: 'https://red-vnc.example/vnc.html',
-      onComplete,
-    }).listen(0);
-    servers.push(server);
-    await new Promise<void>((resolve) => server.once('listening', resolve));
-    const { port } = server.address() as AddressInfo;
-
-    const page = await fetch(`http://127.0.0.1:${port}/`);
-    const html = await page.text();
-    expect(html).toContain('Chrome is running without automation');
-    expect(html).toContain('https://red-vnc.example/vnc.html');
-    expect(html).toContain("fetch('/complete', { method: 'POST' })");
-    expect(onComplete).not.toHaveBeenCalled();
-
-    const completed = await fetch(`http://127.0.0.1:${port}/complete`, { method: 'POST' });
-    expect(completed.status).toBe(202);
-    expect(await completed.json()).toEqual({ ok: true, restarting: true });
-    expect(onComplete).toHaveBeenCalledOnce();
-  });
-});