mongo fix

app/api/books/[book]/route.ts

@@ -0,0 +1,12 @@
+import { NextResponse } from "next/server";
+import { prisma } from "@/lib/db";
+
+export async function GET(
+  _req: Request,
+  { params }: { params: Promise<{ book: string }> }
+) {
+  const { book } = await params;
+  const meta = await prisma.bookMeta.findUnique({ where: { book } });
+  if (!meta) return NextResponse.json({ error: "Not found" }, { status: 404 });
+  return NextResponse.json({ book: meta.book, ...meta.data as Record<string, unknown> });
+}