chore(checkpoint): save club core backend and pending pos fixes

project/src/modules/club/infrastructure/device-token.ts

@@ -0,0 +1,9 @@
+import { createHash, randomBytes } from 'node:crypto';
+
+export function generateDeviceToken(): string {
+  return randomBytes(48).toString('base64url');
+}
+
+export function hashDeviceToken(token: string): string {
+  return createHash('sha256').update(token).digest('hex');
+}