refac: DELETE /v1/user/{id}?expected_role_id=N, user.remove audit event, 409 target_role_not_found, GetAll returns its error, Own-scope visibility filter moved into repos, JSON tags removed from use-case types

test/users_api_world_test.go

@@ -113,6 +113,7 @@ func (w *usersAPIWorld) wire() {
 	hasher := &stubHasher{}
 	url := "https://cms.example.com"
 	c.ChangeUserRoleUseCase = useCases.NewChangeUserRoleUseCase(w.users, w.roles, w.types, w.recorder)
+	c.RemoveUserUseCase = useCases.NewRemoveUserUseCase(w.users, w.roles, w.types, w.recorder)
 	c.GetMyAccessUseCase = useCases.NewGetMyAccessUseCase(w.roles, w.users)
 	c.TransferOwnershipUseCase = useCases.NewTransferOwnershipUseCase(w.users, w.roles, w.recorder)
 	c.CreateInviteUseCase = useCases.NewCreateInviteUseCase(w.users, w.invites, w.roles, w.types, hasher, w.mail, url, w.recorder)