fix for redteam evaluation error (#43763)

* fix for redteam evaluation error

* add logging for aml aca token header

* log client id

Author: slister1001

sdk/evaluation/azure-ai-evaluation/azure/ai/evaluation/red_team/_evaluation_processor.py

@@ -122,8 +122,13 @@ async def evaluate_conversation(
             }
 
             # Add context to query_response if found
-            if context[0] is not None:
-                query_response["context"] = context[0]
+            if context and context[0] is not None:
+                # If context is a string, wrap it in the expected format for the RAI service
+                context_value = context[0]
+                if isinstance(context_value, str):
+                    query_response["context"] = {"contexts": [{"content": context_value}]}
+                else:
+                    query_response["context"] = context_value
 
             if tool_calls and any(tool_calls):
                 query_response["tool_calls"] = [call for sublist in tool_calls for call in sublist if call]

sdk/evaluation/azure-ai-evaluation/azure/ai/evaluation/simulator/_model_tools/_generated_rai_client.py

@@ -145,6 +145,8 @@ async def get_attack_objectives(
             if client_id:
                 from azure.identity import DefaultAzureCredential
 
+                self.logger.info(f"Using client_id: {client_id} to set token in aml-aca-token header ")
+
                 # Get token using the client_id for managed identity
                 managed_identity_credential = DefaultAzureCredential(
                     managed_identity_client_id=client_id, exclude_interactive_browser_credential=True