feat: more role backend and admin/writer roles additions and adjustments

test/image_variants_env_test.go

@@ -113,6 +113,7 @@ func (e *variantEnv) container(limits useCases.ServeVariantLimits) *api.UseCases
 	return &api.UseCases{
 		Token:                    e.token,
 		GetUserUseCase:           useCases.NewGetUserUseCase(e.users),
+		CheckPermissionUseCase:   useCases.NewCheckPermissionUseCase(newSeededMockRoleRepo()),
 		GetMyAuthorUseCase:       useCases.NewGetMyAuthorUseCase(plainAuthors()),
 		GetMyAccessUseCase:       useCases.NewGetMyAccessUseCase(newSeededMockRoleRepo()),
 		OpenMediaUseCase:         useCases.NewOpenMediaUseCase(e.storage),