Ohr-Button Absturz gefixt (LiveAudioStream entfernt, Phase 1 , Play-Button in ARIA-Nachrichten fuer Sprachwiedergabe

- [x] Chat-Suche in der App (Lupe in Statusleiste)
- [x] Watchdog mit Container-Restart (2min Warnung → 5min doctor --fix → 8min Restart),Abbrechen-Button im Diagnostic Chat
- [x] Nachrichten Backup on-the-fly (/shared/config/chat_backup.jsonl)
- [x] Grosse Nachrichten satzweise aufteilen fuer TTS
- [x] RVS Nachrichten vom Smartphone gehen durch

android/src/screens/ChatScreen.tsx

@@ -91,6 +91,8 @@ const ChatScreen: React.FC = () => {
   const [gpsEnabled, setGpsEnabled] = useState(false);
   const [wakeWordActive, setWakeWordActive] = useState(false);
   const [fullscreenImage, setFullscreenImage] = useState<string | null>(null);
+  const [searchQuery, setSearchQuery] = useState('');
+  const [searchVisible, setSearchVisible] = useState(false);
 
   const flatListRef = useRef<FlatList>(null);
   const messageIdCounter = useRef(0);
@@ -581,6 +583,18 @@ const ChatScreen: React.FC = () => {
             {item.text}
           </Text>
         )}
+        {/* Play-Button fuer ARIA-Nachrichten */}
+        {!isUser && item.text.length > 0 && (
+          <TouchableOpacity
+            style={styles.playButton}
+            onPress={() => {
+              // TTS-Request an Bridge senden
+              rvs.send('tts_request' as any, { text: item.text, voice: '' });
+            }}
+          >
+            <Text style={styles.playButtonText}>{'\uD83D\uDD0A'}</Text>
+          </TouchableOpacity>
+        )}
         <Text style={styles.timestamp}>{time}</Text>
       </View>
     );
@@ -603,12 +617,32 @@ const ChatScreen: React.FC = () => {
           {connectionState === 'connected' ? 'Verbunden' :
            connectionState === 'connecting' ? 'Verbinde...' : 'Getrennt'}
         </Text>
+        <TouchableOpacity onPress={() => setSearchVisible(!searchVisible)} style={{marginLeft: 'auto', paddingHorizontal: 8}}>
+          <Text style={{fontSize: 16}}>{'\uD83D\uDD0D'}</Text>
+        </TouchableOpacity>
       </View>
 
+      {/* Suchleiste */}
+      {searchVisible && (
+        <View style={styles.searchBar}>
+          <TextInput
+            style={styles.searchInput}
+            value={searchQuery}
+            onChangeText={setSearchQuery}
+            placeholder="Chat durchsuchen..."
+            placeholderTextColor="#555570"
+            autoFocus
+          />
+          <TouchableOpacity onPress={() => { setSearchVisible(false); setSearchQuery(''); }}>
+            <Text style={{color: '#FF3B30', fontSize: 14, paddingHorizontal: 8}}>X</Text>
+          </TouchableOpacity>
+        </View>
+      )}
+
       {/* Nachrichtenliste */}
       <FlatList
         ref={flatListRef}
-        data={messages}
+        data={searchQuery ? messages.filter(m => m.text.toLowerCase().includes(searchQuery.toLowerCase())) : messages}
         keyExtractor={item => item.id}
         renderItem={renderMessage}
         contentContainerStyle={styles.messageList}
@@ -887,6 +921,30 @@ const styles = StyleSheet.create({
   wakeWordIcon: {
     fontSize: 16,
   },
+  searchBar: {
+    flexDirection: 'row',
+    alignItems: 'center',
+    backgroundColor: '#12122A',
+    paddingHorizontal: 12,
+    paddingVertical: 6,
+    borderBottomWidth: 1,
+    borderBottomColor: '#1E1E2E',
+  },
+  searchInput: {
+    flex: 1,
+    color: '#FFFFFF',
+    fontSize: 14,
+    paddingVertical: 4,
+  },
+  playButton: {
+    alignSelf: 'flex-end',
+    paddingHorizontal: 8,
+    paddingVertical: 2,
+    marginTop: 4,
+  },
+  playButtonText: {
+    fontSize: 16,
+  },
   fullscreenOverlay: {
     flex: 1,
     backgroundColor: 'rgba(0,0,0,0.95)',