refactor(frontend): lint, one session guard, one request helper, one user context

src/pages/SettingsPage.steamToast.test.jsx

@@ -5,6 +5,7 @@ import {MemoryRouter} from 'react-router-dom';
 import {toast} from 'sonner';
 import SettingsPage from './SettingsPage.jsx';
 import {PreferencesProvider} from '../context/PreferencesContext.jsx';
+import {CurrentUserProvider} from '../context/CurrentUserContext.jsx';
 
 // Like react-i18next: a language change re-renders every subscriber with a fresh `t`.
 vi.mock('react-i18next', async () => {
@@ -44,7 +45,7 @@ describe('SettingsPage Steam toast', () => {
     });
 
     it('shows the linked toast once, also after a language change', async () => {
-        render(<MemoryRouter initialEntries={['/settings?steam=linked']}><PreferencesProvider><SettingsPage/></PreferencesProvider></MemoryRouter>);
+        render(<MemoryRouter initialEntries={['/settings?steam=linked']}><PreferencesProvider><CurrentUserProvider><SettingsPage/></CurrentUserProvider></PreferencesProvider></MemoryRouter>);
         await screen.findByText('SETTINGS.STEAM_LINK.VERIFIED');
         expect(toast.success).toHaveBeenCalledTimes(1);