1 version

App.tsx

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+/**
+ * BehördenKlar — Behördenbriefe verstehen, übersetzen, beantworten.
+ * Einstiegspunkt: Navigation + Initialisierung (Archiv, Benachrichtigungen).
+ */
+import React, { useEffect } from 'react';
+import { StatusBar } from 'expo-status-bar';
+import { NavigationContainer } from '@react-navigation/native';
+import { createNativeStackNavigator } from '@react-navigation/native-stack';
+import { RootStackParamList } from './src/types';
+import { useAppStore } from './src/store/useAppStore';
+import { initialisiereBenachrichtigungen } from './src/services/erinnerungen';
+import { farben, schrift } from './src/theme';
+import { HomeScreen } from './src/screens/HomeScreen';
+import { ConsentScreen } from './src/screens/ConsentScreen';
+import { ScanScreen } from './src/screens/ScanScreen';
+import { AnalyseScreen } from './src/screens/AnalyseScreen';
+import { AntwortScreen } from './src/screens/AntwortScreen';
+import { GlossarScreen } from './src/screens/GlossarScreen';
+import { EinstellungenScreen } from './src/screens/EinstellungenScreen';
+
+const Stack = createNativeStackNavigator<RootStackParamList>();
+
+export default function App() {
+  const initialisiere = useAppStore((s) => s.initialisiere);
+
+  useEffect(() => {
+    initialisiereBenachrichtigungen();
+    initialisiere();
+  }, [initialisiere]);
+
+  return (
+    <NavigationContainer>
+      <StatusBar style="dark" />
+      <Stack.Navigator
+        screenOptions={{
+          headerStyle: { backgroundColor: farben.hintergrund },
+          headerTintColor: farben.primaer,
+          headerTitleStyle: { fontSize: schrift.gross, fontWeight: '700' },
+          headerBackTitle: 'Zurück',
+          contentStyle: { backgroundColor: farben.hintergrund },
+        }}
+      >
+        <Stack.Screen name="Home" component={HomeScreen} options={{ title: 'BehördenKlar' }} />
+        <Stack.Screen name="Consent" component={ConsentScreen} options={{ title: 'Datenschutz' }} />
+        <Stack.Screen name="Scan" component={ScanScreen} options={{ title: 'Brief scannen' }} />
+        <Stack.Screen name="Analyse" component={AnalyseScreen} options={{ title: 'Ihr Brief erklärt' }} />
+        <Stack.Screen name="Antwort" component={AntwortScreen} options={{ title: 'Antwort erstellen' }} />
+        <Stack.Screen name="Glossar" component={GlossarScreen} options={{ title: 'Behörden-Glossar' }} />
+        <Stack.Screen name="Einstellungen" component={EinstellungenScreen} options={{ title: 'Einstellungen' }} />
+      </Stack.Navigator>
+    </NavigationContainer>
+  );
+}