add tool calling

vibe_bot/tests/conftest.py

@@ -7,7 +7,7 @@ import warnings
 from collections.abc import Generator
 from pathlib import Path
 from typing import TYPE_CHECKING, Any
-from unittest.mock import MagicMock, patch
+from unittest.mock import AsyncMock, MagicMock, patch
 
 import numpy as np
 import pytest
@@ -195,6 +195,7 @@ def mock_llama_wrapper() -> Generator[MagicMock]:
     """Provide mock llama_wrapper module."""
     with patch("vibe_bot.main.llama_wrapper") as mock_wrapper:
         mock_wrapper.chat_completion_with_history.return_value = "Bot response"
+        mock_wrapper.chat_completion_with_tools = AsyncMock(return_value="Bot response")
         mock_wrapper.chat_completion_instruct.return_value = "image prompt"
         mock_wrapper.image_generation.return_value = ""
         mock_wrapper.image_edit.return_value = ""