Architecture refactoring

[raf-nr]

Clean architecture

The project architecture was completely redone in accordance with the principles of clean architecture:

• The basic business logic was moved to a separate domain module, which does not depend on the “external world”.
• Business scenarios were highlighted and placed in the usecase module. They manage domain entities and nothing else. They do not depend on the “ external world” in any way and communicate with it using interfaces.
• Database models, data store and external task settings, as well as all other infrastructure elements were placed in the infrastructure module.
• The repository module contains implementations of repositories - a design pattern that provides an abstraction for working with a data store, without specifying the details of the structure of this store.
• Similarly, the worker module contains the implementation of all background task workers.

Tests

Unit tests have been added for all module elements:

• domain
• repository
• usecase

[raf-nr]

Типы поправил, от sqlaclhemy_mixins полностью избавились.
В дополнение к этому сделал нормальный "универсальный" unit of work, который работает теперь для всех типов репозиториев.
Добавил новые unit и интеграционные тесты, а также тесты, проверяющие зависимости между модулями на соблюдение принципов clean architecture.