feat: integrate invitation access, world NPCs, and deployment

client/src/app/App.tsx

@@ -4,12 +4,13 @@ import { AdminLayout } from './AdminLayout';
 import { LoginPage } from '../pages/LoginPage';
 import { UsersPage } from '../pages/UsersPage';
 import { LogsPage } from '../pages/LogsPage';
+import { InvitationCodesPage } from '../pages/InvitationCodesPage';
 import { isAuthed } from '../lib/adminAuth';
 
 export function App() {
   return (
     <ConfigProvider>
-      <BrowserRouter>
+      <BrowserRouter basename={import.meta.env.BASE_URL}>
         <Routes>
           <Route path="/login" element={<LoginPage />} />
           <Route
@@ -18,6 +19,7 @@ export function App() {
           >
             <Route index element={<Navigate to="/users" replace />} />
             <Route path="users" element={<UsersPage />} />
+            <Route path="invitation-codes" element={<InvitationCodesPage />} />
             <Route path="logs" element={<LogsPage />} />
           </Route>
           <Route path="*" element={<Navigate to={isAuthed() ? '/users' : '/login'} replace />} />