fix(web): drop the settings Logout button left over from Google sign-in

The button called logout(), which went away with sign-in (decision #11),
so clicking it threw.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Author: kckern

apps/web/public/css/ui.css

@@ -450,11 +450,6 @@ sup.vnum
      width: 250px;
      line-height: 20px;
      height: 20px;
-}
- #logout {
-     position: absolute;
-     top: 50px;
-     right: 20px;
 }
  #options {
      width: 700px;

apps/web/src/presentation/ajax/settings.js

@@ -35,7 +35,6 @@ export function renderSettings({ user = {}, prefs, versionsByVol }) {
 
   return `<div id="settings">
 
-<button onclick='logout()' id="logout">Logout</button>
 <h3>Scripture.Guide Preferences for ${esc(user.name)}</h3>
 <hr>
 <h5>Preferred Versions:</h5>

apps/web/test/unit/ajaxRoutes.test.js

@@ -254,6 +254,11 @@ describe('/settings', () => {
     expect($('#mail').attr('value')).toBe('');
     expect(repo.findPrefs).not.toHaveBeenCalled();
   });
+  it('has no Logout button now that Google sign-in is gone (decision #11)', async () => {
+    const res = await request(app).get('/settings');
+    expect(cheerio.load(res.text)('#logout').length).toBe(0);
+    expect(res.text).not.toContain('logout()');
+  });
   it('marks saved choices for a signed-in visitor', async () => {
     repo.findPrefs.mockResolvedValue({ versions: { bible: { t: 'KJV' } }, options: { audio: 'false', voice: 'female', verpanel: 'ver' } });
     const res = await request(app).post('/settings').set('Cookie', 'sg_user=Ann; sg_mail=ann@example.com');