fix: squish passkeys

packages/lib/utils/authenticator.ts

@@ -0,0 +1,17 @@
+import { WEBAPP_BASE_URL } from '../constants/app';
+import { PASSKEY_TIMEOUT } from '../constants/auth';
+
+/**
+ * Extracts common fields to identify the RP (relying party)
+ */
+export const getAuthenticatorRegistrationOptions = () => {
+  const webAppBaseUrl = new URL(WEBAPP_BASE_URL);
+  const rpId = webAppBaseUrl.hostname;
+
+  return {
+    rpName: 'Documenso',
+    rpId,
+    origin: WEBAPP_BASE_URL,
+    timeout: PASSKEY_TIMEOUT,
+  };
+};