added folder select dialog, fixed chat loading

android/src/screens/ChatScreen.tsx

@@ -101,22 +101,28 @@ const ChatScreen: React.FC = () => {
   };
 
   // Chat-Verlauf aus AsyncStorage laden
+  const isInitialLoad = useRef(true);
   useEffect(() => {
     const loadMessages = async () => {
       try {
         const stored = await AsyncStorage.getItem(CHAT_STORAGE_KEY);
+        console.log('[Chat] AsyncStorage geladen:', stored ? `${stored.length} Bytes` : 'leer');
         if (stored) {
           const parsed: ChatMessage[] = JSON.parse(stored);
+          if (Array.isArray(parsed) && parsed.length > 0) {
+            console.log('[Chat] ${parsed.length} Nachrichten geladen');
             setMessages(parsed);
-          // ID-Counter auf hoechsten Wert setzen um Kollisionen zu vermeiden
             const maxId = parsed.reduce((max, msg) => {
               const num = parseInt(msg.id.split('_').pop() || '0', 10);
               return num > max ? num : max;
             }, 0);
             messageIdCounter.current = maxId;
           }
+        }
       } catch (err) {
         console.error('[Chat] Fehler beim Laden des Verlaufs:', err);
+      } finally {
+        isInitialLoad.current = false;
       }
     };
     loadMessages();
@@ -278,7 +284,7 @@ const ChatScreen: React.FC = () => {
 
   // Chat-Verlauf in AsyncStorage speichern (letzte N Nachrichten)
   useEffect(() => {
-    if (messages.length === 0) return;
+    if (messages.length === 0 || isInitialLoad.current) return;
     // Nur file:// URIs speichern, data: URIs rausfiltern (zu gross)
     const toStore = messages.slice(-MAX_STORED_MESSAGES).map(msg => ({
       ...msg,

android/src/screens/SettingsScreen.tsx

@@ -115,6 +115,35 @@ const SettingsScreen: React.FC = () => {
     Alert.alert('Gespeichert', `Neuer Speicherort:\n${clean}\n\nWird ab der naechsten Nachricht verwendet.`);
   }, []);
 
+  const storagePaths = [
+    { label: 'App-intern (Standard)', path: DEFAULT_STORAGE_PATH },
+    { label: 'Externer Speicher', path: '/storage/emulated/0/ARIA/attachments' },
+    { label: 'SD-Karte', path: '/storage/sdcard1/ARIA/attachments' },
+    { label: 'Downloads', path: '/storage/emulated/0/Download/ARIA' },
+  ];
+
+  const showPathPicker = useCallback(() => {
+    const options = storagePaths.map(p => p.label);
+    options.push('Eigenen Pfad eingeben');
+    options.push('Abbrechen');
+
+    Alert.alert(
+      'Speicherort waehlen',
+      'Wo sollen Anhaenge gespeichert werden?',
+      [
+        ...storagePaths.map(p => ({
+          text: p.label,
+          onPress: () => saveStoragePath(p.path),
+        })),
+        {
+          text: 'Eigenen Pfad eingeben',
+          onPress: () => { setTempPath(storagePath); setEditingPath(true); },
+        },
+        { text: 'Abbrechen', style: 'cancel' as const },
+      ],
+    );
+  }, [storagePath]);
+
   const clearStorageCache = useCallback(async () => {
     Alert.alert(
       'Cache loeschen',
@@ -438,7 +467,7 @@ const SettingsScreen: React.FC = () => {
             <View style={{flexDirection: 'row', gap: 8, marginTop: 8}}>
               <TouchableOpacity
                 style={[styles.clearButton, {flex: 1, marginTop: 0}]}
-                onPress={() => { setTempPath(storagePath); setEditingPath(true); }}
+                onPress={showPathPicker}
               >
                 <Text style={styles.clearButtonText}>Pfad aendern</Text>
               </TouchableOpacity>