add user files (#4152)

backend/onyx/tools/force.py

@@ -12,6 +12,7 @@ class ForceUseTool(BaseModel):
     force_use: bool
     tool_name: str
     args: dict[str, Any] | None = None
+    override_kwargs: Any = None  # This will hold tool-specific override kwargs
 
     def build_openai_tool_choice_dict(self) -> dict[str, Any]:
         """Build dict in the format that OpenAI expects which tells them to use this tool."""