Add API key generator and Zotero script builder

src/lib/clean-pdf/api-key.ts

@@ -0,0 +1,7 @@
+import { randomBytes } from "node:crypto";
+
+export const PDF_KEY_PREFIX = "sbpdf_";
+
+export function generatePdfKey(): string {
+  return PDF_KEY_PREFIX + randomBytes(24).toString("base64url");
+}