fix:manager意图识别bug (#762)

* fix:连接manager后无法使用functioncallbug

* fix:意图识别使用llm无法播放音乐bug

* fix：manager第一图识别使用独立llm无法初始化llm的bug

main/xiaozhi-server/core/providers/llm/openai/openai.py

@@ -15,7 +15,15 @@ class LLMProvider(LLMProviderBase):
             self.base_url = config.get("base_url")
         else:
             self.base_url = config.get("url")
-        self.max_tokens = config.get("max_tokens", 500)
+        max_tokens = config.get("max_tokens")
+        if max_tokens is None or max_tokens == "":
+            max_tokens = 500
+
+        try:
+            max_tokens = int(max_tokens)
+        except (ValueError, TypeError):
+            max_tokens = 500
+        self.max_tokens = max_tokens
 
         check_model_key("LLM", self.api_key)
         self.client = openai.OpenAI(api_key=self.api_key, base_url=self.base_url)

main/xiaozhi-server/core/providers/vad/silero.py

@@ -42,7 +42,8 @@ class VADProvider(VADProviderBase):
                 audio_tensor = torch.from_numpy(audio_float32)
 
                 # 检测语音活动
-                speech_prob = self.model(audio_tensor, 16000).item()
+                with torch.no_grad():
+                    speech_prob = self.model(audio_tensor, 16000).item()
                 client_have_voice = speech_prob >= self.vad_threshold
 
                 # 如果之前有声音，但本次没有声音，且与上次有声音的时间查已经超过了静默阈值，则认为已经说完一句话