add qwen error logs

app/services/llm.py

@@ -76,13 +76,27 @@ def _generate_response(prompt: str) -> str:
 
         if llm_provider == "qwen":
             import dashscope
+            from dashscope.api_entities.dashscope_response import GenerationResponse
             dashscope.api_key = api_key
             response = dashscope.Generation.call(
-                model=model_name,
+                model=model_name + "dd",
                 messages=[{"role": "user", "content": prompt}]
             )
+            if response:
+                if isinstance(response, GenerationResponse):
+                    status_code = response.status_code
+                    if status_code != 200:
+                        raise Exception(
+                            f"[{llm_provider}] returned an error response: \"{response}\"")
+
                     content = response["output"]["text"]
                     return content.replace("\n", "")
+                else:
+                    raise Exception(
+                        f"[{llm_provider}] returned an invalid response: \"{response}\"")
+            else:
+                raise Exception(
+                    f"[{llm_provider}] returned an empty response")
 
         if llm_provider == "gemini":
             import google.generativeai as genai