Add setup and restore flow

frontend/src/App.tsx

@@ -53,7 +53,7 @@ import {
 import { usePreferencesStore } from "@/stores/preferences/preferences-provider";
 
 import { cn } from "./lib/utils";
-import { ApiError, getCurrentUser, logout, lookupTicket } from "./api";
+import { ApiError, getCurrentUser, getSetupStatus, logout, lookupTicket } from "./api";
 import { formatTimer } from "./format";
 import { activeElapsedMs, pauseEntry, readStoredTimers, resumeEntry, storageKeyForUser, ticketPattern, type TimerEntry } from "./timers";
 import { AdminUsersPage } from "./views/AdminUsersPage";
@@ -64,6 +64,7 @@ import { MonthlyClosePage } from "./views/MonthlyClosePage";
 import { ProfilePage } from "./views/ProfilePage";
 import { RecurringBillingsPage } from "./views/RecurringBillingsPage";
 import { StatisticsPage } from "./views/StatisticsPage";
+import { SetupPage } from "./views/SetupPage";
 import { TicketDetailPage } from "./views/TicketDetailPage";
 import { TimerPage } from "./views/TimerPage";
 import type { AuthUser, PeriodType } from "./types";
@@ -345,6 +346,7 @@ export function App() {
   const { path, route, navHandler, navigate } = useAppRouter();
   const [currentUser, setCurrentUser] = useState<AuthUser | null>(null);
   const [authLoading, setAuthLoading] = useState(true);
+  const [setupRequired, setSetupRequired] = useState(false);
   const [timers, setTimers] = useState<TimerEntry[]>([]);
   const [timersLoaded, setTimersLoaded] = useState(false);
   const [timerOwnerId, setTimerOwnerId] = useState<string | null>(null);
@@ -354,6 +356,15 @@ export function App() {
   useEffect(() => {
     async function loadUser() {
       try {
+        const setup = await getSetupStatus();
+
+        if (setup.required) {
+          setSetupRequired(true);
+          setCurrentUser(null);
+          return;
+        }
+
+        setSetupRequired(false);
         const result = await getCurrentUser();
         setCurrentUser(result.user);
       } catch (error) {
@@ -554,6 +565,23 @@ export function App() {
     );
   }
 
+  if (setupRequired) {
+    return (
+      <SetupPage
+        onAdminCreated={(user) => {
+          setSetupRequired(false);
+          setCurrentUser(user);
+          navigate("/admin/users");
+        }}
+        onRestoreComplete={() => {
+          setSetupRequired(false);
+          setCurrentUser(null);
+          navigate("/");
+        }}
+      />
+    );
+  }
+
   if (!currentUser) {
     return <LoginPage onLogin={setCurrentUser} />;
   }