Send the token with /ui/brand from the settings tab

The route has been behind auth since aa848de, but the settings tab still
called it without a token: the 401 "Unauthorized" made the panel treat
the session as expired and log out on every visit to Settings. The mock
now requires auth on /ui/brand too, like the server.

awg-ui/mock-server.ts

@@ -67,7 +67,9 @@ const devOut = (m: MK, d: Dev) => ({ ...d,
     ips: m.servers.filter(s => s !== 2).map(s => ({ server_id: s, ip: `10.9.0.${50 + d.id + s * 10}` })) });
 const find = (id: string) => masters.find(m => m.id === Number(id) && !m.deleting);
 
-app.get("/ui/brand", (_q, r) => r.json({ brand: "Forgetting", channel: "Beta", version: MOCK_VERSION }));
+// Как на сервере: за авторизацией, без токена — 401 «Unauthorized» (на него панель выходит из сессии).
+app.get("/ui/brand", (q, r) => { if (!q.headers.authorization) { r.status(401).json({ error: "Unauthorized" }); return; }
+    r.json({ brand: "Forgetting", channel: "Beta", version: MOCK_VERSION }); });
 app.post("/login", (q, r) => q.body.user === "admin" && q.body.pass === "admin" ? r.json({ token: "mock." + crypto.randomBytes(8).toString("hex") + ".sig" }) : r.status(401).json({ error: "Неверный логин или пароль" }));
 app.post("/logout", (_q, r) => r.json({ ok: true }));
 app.get("/health", (q, r) => {

awg-ui/src/tabs/settings/index.tsx

@@ -2,7 +2,6 @@
 // This source code is licensed under the MIT license found in the
 // LICENSE file in the root directory of this source tree.
 import { useState, useEffect, useLayoutEffect, useCallback, useRef } from 'react';
-import axios from 'axios';
 import { apiFetch, copyText, timeAgo, BRAND_FALLBACK, SETTINGS_SECTION_KEY, type Brand, type NodeInfo, type PageProps } from '../../lib/shared';
 import { useTheme, setThemeMode, type ThemeMode } from '../../lib/theme';
 import { IcoCheck, IcoCopy, IcoRefresh, IcoTrash, IcoPlus } from '../../components/icons';
@@ -138,7 +137,8 @@ export default function SettingsPage({ token, showMsg }: PageProps) {
         } catch {
             showMsg('Ошибка загрузки настроек');
         }
-        axios.get('/ui/brand').then(({ data }) => setBrand({
+        // /ui/brand за авторизацией: без токена 401 «Unauthorized», и App считал сессию истёкшей.
+        apiFetch('GET', '/ui/brand', token).then(data => setBrand({
             brand: data.brand || BRAND_FALLBACK, channel: data.channel || '', version: data.version || '',
         })).catch(() => {});
         apiFetch('GET', '/ui/nodes', token).then(r => setNodes(r.nodes ?? [])).catch(() => {});