Update controller configuration for a specific bot.
Args: bot_name: Name of the bot controller_name: Name of the controller to update config: Configuration dictionary to update with
Returns: Success message when configuration is updated
Raises: HTTPException: 404 if bot or controller not found, 400 if update error
Basic authentication header of the form Basic <encoded-value>, where <encoded-value> is the base64-encoded string username:password.
The body is of type Config · object.
Successful Response