Add a per-user lead agent and make the right pane task-focused

internal/server/server.go

@@ -61,7 +61,7 @@ func New(dataDir string, spa fs.FS) (*Server, error) {
 		return nil, fmt.Errorf("start push notifier: %w", err)
 	}
 
-	s.agents = agents.New(s.store, agents.DefaultLimits, filepath.Join(dataDir, "worktrees"))
+	s.agents = agents.New(s.store, agents.DefaultLimits, filepath.Join(dataDir, "worktrees"), filepath.Join(dataDir, "leads"))
 	err = s.agents.Recover(context.Background())
 	if err != nil {
 		s.notifier.Close()
@@ -78,6 +78,7 @@ const pushWindow = 3 * time.Second
 func (s *Server) publish(ev api.Event) {
 	s.hub.publish(ev)
 	s.notifier.Observe(ev)
+	s.agents.Observe(ev)
 }
 
 func (s *Server) Close() error {
@@ -414,13 +415,7 @@ func (s *Server) DiscardTask(w http.ResponseWriter, r *http.Request, taskID stri
 		return
 	}
 
-	err := s.agents.RemoveTask(r.Context(), t, p, actor(r))
-	if err != nil {
-		writeError(w, http.StatusInternalServerError, err)
-		return
-	}
-
-	t, err = s.store.DiscardTask(r.Context(), taskID, actor(r))
+	t, err := s.agents.Discard(r.Context(), t, p, actor(r))
 	if err != nil {
 		writeStoreError(w, err)
 		return
@@ -652,7 +647,7 @@ func writeAgentError(w http.ResponseWriter, err error) {
 		writeError(w, http.StatusNotFound, err)
 	case errors.Is(err, agents.ErrConflict):
 		writeError(w, http.StatusConflict, err)
-	case errors.Is(err, agents.ErrNoGitIdentity):
+	case errors.Is(err, agents.ErrInvalid), errors.Is(err, agents.ErrNoGitIdentity):
 		writeError(w, http.StatusBadRequest, err)
 	default:
 		writeError(w, http.StatusInternalServerError, err)