Simplify code found by simplicity audit of d6be98f

internal/agents/schedule.go

@@ -39,7 +39,7 @@ func (m *Manager) SaveSchedule(ctx context.Context, projectID, scheduleID string
 		if err != nil {
 			return api.Schedule{}, err
 		}
-		if user.GitName == "" || user.GitEmail == "" {
+		if !user.HasGitIdentity() {
 			return api.Schedule{}, ErrNoGitIdentity
 		}
 		project, err := m.store.GetProject(ctx, projectID)
@@ -105,7 +105,7 @@ func (m *Manager) startScheduled(ctx context.Context, sc api.Schedule) error {
 	if err != nil {
 		return err
 	}
-	if user.GitName == "" || user.GitEmail == "" {
+	if !user.HasGitIdentity() {
 		return ErrNoGitIdentity
 	}
 	_, err = m.StartWorkflow(ctx, project, user, sc.Title, project.DefaultBranch, "byre", sc.Workflow, sc.Prompt, nil, "")