Refactored adapters_factory.py for lazy adapter loading.

    try:

        module_path, attr_name = catalog[client_name]

    except KeyError as exc:

        raise ValueError(

            f"Invalid client '{client_name}'. Available: {list(catalog)}"

        ) from exc

        raise ValueError(f"Invalid client '{client_name}'. Available: {list(catalog)}") from exc

    client_cls = _resolve_adapter(module_path, attr_name)

    return client_cls(base_url=base_url, **kwargs)