Refactor websocket_conversation function to simplify access to app state: remove request parameter and directly use websocket.app for model availability checks and audio processing tasks.

app/api/realtime.py

@@ -281,12 +281,15 @@ def is_silence(audio_data: bytes, threshold=SILENCE_THRESHOLD) -> bool:
             return False
 
 @router.websocket("/conversation/{client_id}")
-async def websocket_conversation(websocket: WebSocket, client_id: str, request: Request):
+async def websocket_conversation(websocket: WebSocket, client_id: str):
     """WebSocket endpoint for real-time audio conversation"""
     await manager.connect(websocket, client_id)
     
+    # Get access to app state through the websocket
+    app = websocket.app
+    
     # Validate model availability
-    if not hasattr(request.app.state, "generator") or request.app.state.generator is None:
+    if not hasattr(app.state, "generator") or app.state.generator is None:
         await manager.send_message(client_id, MessageType.ERROR, 
                                    {"message": "TTS model not available"})
         manager.disconnect(client_id)
@@ -330,7 +333,7 @@ async def websocket_conversation(websocket: WebSocket, client_id: str, request:
                         
                         # Process the complete audio asynchronously
                         asyncio.create_task(process_complete_audio(
-                            request.app, client_id, full_audio
+                            app, client_id, full_audio
                         ))
                         
                         # Notify client of end of speech
@@ -361,7 +364,7 @@ async def websocket_conversation(websocket: WebSocket, client_id: str, request:
                     
                     # Process the complete audio asynchronously
                     asyncio.create_task(process_complete_audio(
-                        request.app, client_id, full_audio
+                        app, client_id, full_audio
                     ))
             
             elif message_type == "set_voice":