Retrieves current automatic creative optimization feature enrollment for a WhatsApp Business Account from Meta.

This endpoint does not persist feature enrollment locally. If Meta returns degrees_of_freedom_spec.data[0].creative_features_spec[0] as an object, its string fields are returned as creativeOptimizationFeatures without feature-key filtering, status-value validation, or case normalization. If Meta returns success without a valid creative_features_spec[0] object, creativeOptimizationFeatures is returned as an empty object.