Add context length protection in access_runcontext_history

- Add loop mechanism to reduce history_depth if output exceeds max_total_chars
- Prevents context overflow when accessing run context history
- Prints reduction info and returns depth_reduced field in result

jailbreak_toolbox/models/implementations/openai_model.py

@@ -2,7 +2,6 @@ from ..base_model import BaseModel
 from ...core.registry import model_registry
 import openai
 import time
-import torch
 import base64
 from io import BytesIO
 from typing import Any, Optional, List, Dict, Union
@@ -265,6 +264,7 @@ class OpenAIModel(BaseModel):
             A list of floats representing the embedding vector
         """
         try:
+            import torch
             clean_text = text_input.replace("\n", " ")
 
             # Use specified model or default embedding model