Refactor (DRY) workspace TTL/Schedule validation logic #2119
Description
What
We currently duplicate some validations of workspace TTL / autostart schedule. We should refactor these and put them all in one place.
Interesting to do it in the cli. Can we somehow put the validation on a datastructure and reuse it for the backend + frontend? Like reuse the same code?
Originally posted by @Emyrk in #2018 (comment)
Why
Don't make me Repeat mYself.