Function toggleProject

src/components/sidebar/SessionList.tsx:26–36

(projectId: string)

  }, [activeProjectId]);

  const toggleProject = (projectId: string) => {
    setExpandedProjects((prev) => {
      const next = new Set(prev);
      if (next.has(projectId)) {
        next.delete(projectId);
      } else {
        next.add(projectId);
      }
      return next;
    });
  };

  const handleNewSession = async (e: React.MouseEvent, projectId: string) => {
    e.stopPropagation();