import type { Metadata } from "next"; import "katex/dist/katex.min.css"; import "./globals.css"; import { AppShell, SidebarProvider } from "@/components/sidebar"; export const metadata: Metadata = { title: "Learning Harness", description: "A teacher agent with a memory — sessions, quizzes, and a knowledge graph of what you know.", }; export default function RootLayout({ children }: { children: React.ReactNode }) { return (