Refresh me on auth state so the admin entry survives reloads

Why: store.me was only written by the forced-change gate's onDone
(refreshMe sole caller), so after any page reload or a normal
re-login me stayed null and the admin menu (me?.isAdmin gate in
TaskSidebar/AdminZone) vanished permanently - reported repeatedly as
the user-management page becoming unavailable.

Evidence: vitest 100/100 pass and tsc+vite build clean after the
change; grep shows refreshMe had exactly one call site before
(App.tsx mustchange onDone).

Impact: admins keep the system-management entry across reloads and
normal logins; no behavior change for non-admins (me loads but
isAdmin=false).

Refs: dev task card feature/fe-me-refresh; companion Dev-repo pin
bump.

src/App.tsx

@@ -68,6 +68,10 @@ export function App() {
 
   useEffect(() => {
     if (authState !== 'ok') return
+    // me 回填进 store：管理入口（me?.isAdmin）与侧栏身份都消费它；此前只有
+    // 改密门 onDone 调 refreshMe，登录与刷新回态后 me 恒为 null，管理员菜单
+    // 在任何一次 F5 后永久消失（2026-10-12「用户管理页面不可用」根因）。
+    store.refreshMe()
     store.refreshProjects()
     store.refreshProfiles()
     store.refreshPlugins()