[2026-06-05 23:21:50] Acquired advisory lock: email_batch_send_lock_v1
[2026-06-05 23:21:50] Selected 1 pending recipient(s).
[2026-06-05 23:21:50] Processing recipient_id=11793, email=herdamisan@gmail.com
[2026-06-05 23:21:50] Email sent to herdamisan@gmail.com
[2026-06-05 23:21:50] DB updated to 'sent' for id=11793, affected=1
[2026-06-05 23:21:50] Released advisory lock
[2026-06-05 23:21:50] Batch processing completed.