fix: add error boundary, harden player setup, catch init errors

mobile/App.js

@@ -1,5 +1,5 @@
-import React, { useEffect, useState } from 'react';
-import { View, StatusBar } from 'react-native';
+import React, { useEffect, useState, Component } from 'react';
+import { View, StatusBar, Text, ScrollView } from 'react-native';
 import { NavigationContainer } from '@react-navigation/native';
 import { createBottomTabNavigator } from '@react-navigation/bottom-tabs';
 import { createStackNavigator } from '@react-navigation/stack';
@@ -19,6 +19,30 @@ import LoginScreen        from './src/screens/Login';
 import NowPlayingScreen   from './src/screens/NowPlaying';
 import PlayerBar          from './src/components/PlayerBar';
 
+// ─── ERROR BOUNDARY ───
+class ErrorBoundary extends Component {
+  state = { error: null };
+  static getDerivedStateFromError(e) { return { error: e }; }
+  render() {
+    if (this.state.error) {
+      return (
+        <ScrollView style={{ flex: 1, backgroundColor: '#121212', padding: 24, paddingTop: 60 }}>
+          <Text style={{ color: '#e05252', fontSize: 16, fontWeight: '700', marginBottom: 12 }}>
+            Fehler beim Starten
+          </Text>
+          <Text style={{ color: '#fff', fontSize: 13, fontFamily: 'monospace' }}>
+            {this.state.error?.message || String(this.state.error)}
+          </Text>
+          <Text style={{ color: '#aaa', fontSize: 12, marginTop: 16 }}>
+            {this.state.error?.stack}
+          </Text>
+        </ScrollView>
+      );
+    }
+    return this.props.children;
+  }
+}
+
 const Tab   = createBottomTabNavigator();
 const Stack = createStackNavigator();
 
@@ -63,11 +87,16 @@ function RootNavigator() {
 export default function App() {
   const { loadConfig } = useStore();
   const [ready, setReady] = useState(false);
+  const [initError, setInitError] = useState(null);
 
   useEffect(() => {
     (async () => {
+      try {
         await loadConfig();
         await setupPlayer();
+      } catch (e) {
+        setInitError(e?.message || String(e));
+      }
       setReady(true);
     })();
   }, []);
@@ -82,9 +111,19 @@ export default function App() {
     return () => { sub1.remove(); sub2.remove(); };
   }, []);
 
-  if (!ready) return null;
+  if (!ready) return (
+    <View style={{ flex: 1, backgroundColor: '#121212' }} />
+  );
+
+  if (initError) return (
+    <ScrollView style={{ flex: 1, backgroundColor: '#121212', padding: 24, paddingTop: 60 }}>
+      <Text style={{ color: '#e05252', fontSize: 16, fontWeight: '700', marginBottom: 12 }}>Init-Fehler</Text>
+      <Text style={{ color: '#fff', fontSize: 13 }}>{initError}</Text>
+    </ScrollView>
+  );
 
   return (
+    <ErrorBoundary>
       <GestureHandlerRootView style={{ flex: 1 }}>
         <SafeAreaProvider>
           <StatusBar barStyle="light-content" backgroundColor="#121212" />
@@ -103,5 +142,6 @@ export default function App() {
           </NavigationContainer>
         </SafeAreaProvider>
       </GestureHandlerRootView>
+    </ErrorBoundary>
   );
 }

mobile/src/audio/player.js

@@ -6,7 +6,8 @@ let _setupDone = false;
 
 export async function setupPlayer() {
   if (_setupDone) return;
-  await TrackPlayer.setupPlayer({ autoHandleInterruptions: true });
+  try {
+    await TrackPlayer.setupPlayer();
     await TrackPlayer.updateOptions({
       capabilities: [
         Capability.Play,
@@ -17,14 +18,11 @@ export async function setupPlayer() {
         Capability.Stop,
       ],
       compactCapabilities: [Capability.Play, Capability.Pause, Capability.SkipToNext, Capability.SkipToPrevious],
-    notificationCapabilities: [
-      Capability.Play,
-      Capability.Pause,
-      Capability.SkipToNext,
-      Capability.SkipToPrevious,
-    ],
     });
     _setupDone = true;
+  } catch (e) {
+    console.error('TrackPlayer setup failed:', e);
+  }
 }
 
 // Convert a Navidrome song object to a react-native-track-player track object