docs: better .md handling

Author: nperez0111

docs/app/llms.txt/route.ts

@@ -19,7 +19,9 @@ Important Notes:
   for (const page of source.getPages()) {
     const dir = page.slugs[0];
     const list = map.get(dir) ?? [];
-    list.push(`- [${page.data.title}](${page.url}): ${page.data.description}`);
+    list.push(
+      `- [${page.data.title}](${page.url}.md): ${page.data.description}`,
+    );
     map.set(dir, list);
   }
 

docs/proxy.ts

@@ -0,0 +1,29 @@
+import { getLLMText, source } from "@/lib/source/docs";
+import type { NextRequest } from "next/server";
+
+export async function proxy(request: NextRequest) {
+  const { pathname } = request.nextUrl;
+
+  if (!pathname.endsWith(".md")) {
+    return;
+  }
+
+  const slug = pathname.slice(0, -3).split("/").filter(Boolean).slice(1);
+
+  const page = source.getPage(slug);
+  if (!page) {
+    return new Response("Not Found", { status: 404 });
+  }
+
+  const markdown = await getLLMText(page);
+
+  return new Response(markdown, {
+    headers: {
+      "Content-Type": "text/markdown; charset=utf-8",
+    },
+  });
+}
+
+export const config = {
+  matcher: ["/docs/:path*", "/docs", "/docs.md"],
+};