refac: runtime settings are read once at startup and passed in through the composition root; no handler, router or repository reads environment variables

test/not_found_errors_test.go

@@ -138,6 +138,7 @@ func newNotFoundErrorsRouter(articleRepo *mockArticleRepo, userRepo *mockUserRep
 		useCases.NewListUsersUseCase(userRepo),
 		useCases.NewCreateUserUseCase(userRepo, hasher),
 		useCases.NewAuthenticateUserUseCase(userRepo, hasher),
+		true,
 	)
 
 	r := chi.NewRouter()