curl --request GET \
  --url https://api.example.com/api/v1/kg/queue/health \
  --header 'Authorization: Bearer <token>'

{
  "alert_active": true,
  "alert_fired_total": 123,
  "alert_threshold": 123,
  "claimed_boards": [
    "<string>"
  ],
  "claimed_count": 123,
  "claims_per_min_1m": 123,
  "claims_per_min_5m": 123,
  "dead_letter_count": 123,
  "kuzu_lock_retries_5m": 123,
  "oldest_pending_age_s": 123,
  "queue_depth": 123,
  "workers_active": 123,
  "workers_draining_count": 123,
  "workers_idle": 123
}