[Entrypoint][Refactor]Stage CLI Refactor (#2020)

Signed-off-by: wuhang <wuhang6@huawei.com>
Signed-off-by: Didan Deng <33117903+wtomin@users.noreply.github.com>
Co-authored-by: Didan Deng <33117903+wtomin@users.noreply.github.com>

vllm_omni/entrypoints/openai/api_server.py

@@ -353,7 +353,8 @@ async def omni_run_server_worker(listen_address, sock, args, client_config=None,
     try:
         await shutdown_task
     finally:
-        serving_speech = getattr(getattr(app, "state", None), "openai_serving_speech", None)
+        state = getattr(app, "state", None)
+        serving_speech = getattr(state, "openai_serving_speech", None) if state is not None else None
         if serving_speech is not None:
             serving_speech.shutdown()
         sock.close()