Update model_auditor.py

Fix target model receiving only latest probe instead of full conversation history

_call_async was building a fresh [system, user] message list on every turn,
so the target model had no memory of prior turns. Added a `history` parameter
and pass the full conversation list when calling the target in run_scenario.

Author: kelkalot

simpleaudit/model_auditor.py

@@ -111,11 +111,15 @@ async def _call_async(
         system: Optional[str],
         user: str,
         response_format: Optional[Dict[str, str]] = None,
+        history: Optional[List[Dict]] = None,
     ) -> str:
         messages = []
         if system:
             messages.append({"role": "system", "content": system})
-        messages.append({"role": "user", "content": user})
+        if history:
+            messages.extend(history)
+        else:
+            messages.append({"role": "user", "content": user})
         kwargs: Dict[str, Any] = {
             "model": model,
             "messages": messages,
@@ -260,6 +264,7 @@ async def run_scenario(
                 self.target_model,
                 self.system_prompt,
                 probe,
+                history=conversation,
             )
             response = ModelAuditor.strip_thinking(response)