Update websocket_manager.py

websocket_manager.py

@@ -85,6 +85,7 @@ class WebSocketManager:
         self.event_bus.subscribe(EventType.STT_RESULT, self._handle_stt_result)
         
         # TTS events
+        self.event_bus.subscribe(EventType.TTS_STARTED, self._handle_tts_started)
         self.event_bus.subscribe(EventType.TTS_CHUNK_READY, self._handle_tts_chunk)
         self.event_bus.subscribe(EventType.TTS_COMPLETED, self._handle_tts_completed)
         
@@ -401,6 +402,16 @@ class WebSocketManager:
             "is_final": event.data.get("is_final", False),
             "confidence": event.data.get("confidence", 0.0)
         })
+
+    async def _handle_tts_started(self, event: Event):
+        """Send assistant message when TTS starts"""
+        if event.data.get("is_welcome"):
+            # Send welcome message to client
+            await self.send_message(event.session_id, {
+                "type": "assistant_response",
+                "text": event.data.get("text", ""),
+                "is_welcome": True
+            })
         
     async def _handle_tts_chunk(self, event: Event):
         """Send TTS audio chunk to client"""