fix: omit deprecated temperature for anthropic

main_research.py

@@ -453,7 +453,6 @@ class MultiLLMResearcher:
                     model=self.actual_model,
                     max_tokens=max_tokens,
                     messages=user_messages,
-                    temperature=temperature,
                 )
                 if system_parts:
                     kwargs["system"] = "\n\n".join(system_parts)
@@ -612,4 +611,4 @@ if __name__ == "__main__":
             print(f"Research failed: {results.get('error')}")
             
     except Exception as e:
-        print(f"Error running research: {str(e)}")
+        print(f"Error running research: {str(e)}")