update:测试页面增加OTA地址 (#842)

main/xiaozhi-server/core/handle/helloHandle.py

@@ -81,6 +81,8 @@ async def wakeupWordsResponse(conn):
     """唤醒词响应"""
     wakeup_word = random.choice(WAKEUP_CONFIG["words"])
     result = conn.llm.response_no_stream(conn.config["prompt"], wakeup_word)
+    if result is None or result == "":
+        return
     tts_file = await asyncio.to_thread(conn.tts.to_tts, result)
 
     if tts_file is not None and os.path.exists(tts_file):