移除不必要的搜索模型，简化支持的模型列表

app.py

@@ -68,12 +68,10 @@ default_user_agent = (
 ua = UserAgent()
 
 # Supported models
-supported_models = ["DeepSeek-R1", "DeepSeek-R1-Search", "DeepSeek-V3", "DeepSeek-V3-Search"]
+supported_models = ["DeepSeek-R1", "DeepSeek-V3"]
 model_to_config = {
     "DeepSeek-R1": {"model": "deepseek-huoshan", "isWebSearchEnabled": False},
-    "DeepSeek-R1-Search": {"model": "deepseek-huoshan", "isWebSearchEnabled": True},
     "DeepSeek-V3": {"model": "deepseek-guiji", "isWebSearchEnabled": False},
-    "DeepSeek-V3-Search": {"model": "deepseek-guiji", "isWebSearchEnabled": True},
 }
 
 # Device ID and UA mapping