chore: move website and guide out of packages

apps/website/src/middleware.ts

@@ -0,0 +1,25 @@
+import { NextResponse, type NextRequest } from 'next/server';
+import { PACKAGES } from './util/constants';
+
+export default async function middleware(request: NextRequest) {
+	if (request.nextUrl.pathname.includes('discord.js')) {
+		return NextResponse.redirect('https://discord.js.org/#/docs/discord.js');
+	}
+
+	if (PACKAGES.some((pkg) => request.nextUrl.pathname.includes(pkg))) {
+		const packageName = /\/docs\/packages\/([^/]+)\/.*/.exec(request.nextUrl.pathname)?.[1] ?? 'builders';
+		const res = await fetch(`https://docs.discordjs.dev/api/info?package=${packageName}`);
+		const data: string[] = await res.json();
+
+		const latestVersion = data.at(-2);
+		return NextResponse.redirect(
+			new URL(request.nextUrl.pathname.replace('stable', latestVersion ?? 'main'), request.url),
+		);
+	}
+
+	return NextResponse.redirect(new URL('/docs/packages', request.url));
+}
+
+export const config = {
+	matcher: ['/docs', '/docs/packages/discord.js(.*)?', '/docs/packages/:package/stable/:member*'],
+};