Merge pull request #24 from tw4/feat-dockerfile

TODO: Add Dockerfile for coffee-shop-backend

feat: dockerfile

Merge pull request #23 from tw4/feat-crud-services

feat(backend): crud services for order services

feat(backend): crud services for product services

feat(backend): crud services for stock services

refactor(backend.test): all tests reviewed (#21)

Merge pull request #20 from tw4/remove-logger-auth-controller

remove(backend): auth controller logger

Merge pull request #19 from tw4/remove-empty-file

remove empty file

Merge pull request #18 from tw4/feat-user-controller-test

feat(backend.test): user controller test

typo(backend): user controller