The Strapi CLI way of creating a new project very quickly hits the error because it tried to make foreign keys in PlanetScale and couldn’t. So I am guessing you started out some other way? It did create some of the models though.
My teammate and I at PlanetScale were already talking about the same issue with branching since Strapi was likely going to try to do DDL statements on a production branch, which is not allowed by PlanetScale.