Feature: User Portal - overview/API keys/recharge/tenants/analytics (7 endpoints + frontend)

frontend/src/App.tsx

@@ -45,6 +45,7 @@ import Achievement from '@/pages/admin/Achievement';
 import Tenant from '@/pages/admin/Tenant';
 import Billing from '@/pages/admin/Billing';
 import Analytics from '@/pages/admin/Analytics';
+import UserPortal from '@/pages/UserPortal';
 
 const App: React.FC = () => {
   const [user, setUser] = useState<User | null>(null);
@@ -133,6 +134,7 @@ const App: React.FC = () => {
           <Route path="tenant" element={<Tenant />} />
           <Route path="billing" element={<Billing />} />
           <Route path="analytics" element={<Analytics />} />
+          <Route path="portal" element={<UserPortal />} />
         </Route>
 
         <Route path="*" element={<Navigate to="/" />} />