chore: add debug logging for push notifications

lib/push.ts

@@ -18,13 +18,15 @@ interface PushSubscriptionData {
 
 export async function sendPushNotification(subscription: PushSubscriptionData, payload: any) {
     try {
-        await webpush.sendNotification({
+        console.log(`[PushLib] Sending to ${subscription.endpoint.slice(0, 30)}...`);
+        const result = await webpush.sendNotification({
             endpoint: subscription.endpoint,
             keys: {
                 p256dh: subscription.p256dh,
                 auth: subscription.auth,
             }
         }, JSON.stringify(payload));
+        console.log(`[PushLib] Success: ${result.statusCode}`);
         return { success: true, statusCode: 201 };
     } catch (error: any) {
         if (error.statusCode === 410 || error.statusCode === 404) {