Use of ENUMs and repository pattern in this type of project is a good thing, looking at the long term goals of project. Foundation should always be strong (depending on overall focus of the project)
DTO I usually use regularly in my projects. It helps defining DTO of FE frameworks as well in Typescript or Flutter for mobile / React Native etc. DTOs I personally think is good if we create APIs only with laravel and FE in some other frameworks instead of using Laravel views. About Repository pattern I too think is overkill.. I mostly prefer simple SOLID with services binded to interfaces and reuse wherever I need to do DI. But in this project the LLD scalability can be huge in future with Repository pattern I believe. What say
