Clean-Architecture

How to use T <: CriteriaTag as a hexagonal port so your domain layer never imports a dialect. The database becomes a deployment decision.

How to use T <: CriteriaTag as a hexagonal port so your domain layer never imports a dialect. The database becomes a deployment decision.

In this part we model the heart of the project: the Task entity, its immutable transitions, and a taxonomy of errors by layers. Less magic, more explicit rules, and fewer surprise bugs.