update: 增加了智谱大模型，增加了修改max_tokens接口

app/schemas.py

@@ -34,4 +34,7 @@ class update_assistant_deatil_params_request(BaseModel):
     model :str
     temperature :float
     speaker_id:int
-    length_scale:float
+    length_scale:float
+    
+class update_assistant_max_tokens_request(BaseModel):
+    max_tokens:int