llm change to qwen3.5

llm/llm_thinking_engine.py

@@ -11,10 +11,10 @@ class LLMConfig:
     """LLM配置类"""
     api_key: Optional[str] = None
     base_url: str = "https://dashscope.aliyuncs.com/compatible-mode/v1"
-    model: str = "deepseek-v3.2"
+    model: str = "qwen3.5-plus"
     enable_thinking: bool = True
     temperature: float = 0.7
-    max_tokens: int = 2048
+    max_tokens: int = 4096
 
 
 class LLMThinkingEngine: