Add background audits of the default branch's newest commit

internal/agents/leadtools.go

@@ -284,7 +284,7 @@ func (m *Manager) leadTools(l *live) []mcp.Tool {
 					}
 				}
 				if args.Workflow != "" {
-					tasks, err := m.StartWorkflow(ctx, project, user, args.Title, base, leadActor(user.Login), args.Workflow, args.Prompt, nil)
+					tasks, err := m.StartWorkflow(ctx, project, user, args.Title, base, leadActor(user.Login), args.Workflow, args.Prompt, nil, "")
 					if err != nil {
 						return "", err
 					}
@@ -897,7 +897,7 @@ func (m *Manager) listTasksText(ctx context.Context) (string, error) {
 		listed := false
 		started := map[string]bool{}
 		for _, t := range tasks {
-			if t.Status != api.TaskStatusActive {
+			if t.Status != api.TaskStatusActive || t.Background {
 				continue
 			}
 			listed = true