POST /cancel

curl -X POST "$PHONEFARM_BASE_URL/cancel" \
  -H "Authorization: Bearer $PHONEFARM_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "content_id": "content-2026-03-22-001",
    "account_id": "account_user095916355",
    "reason": "video needs re-editing"
  }'

{
  "status": "cancelled",
  "queue_item_id": "7c1a07f6-1d55-4f79-a403-8a8420f1b62b",
  "previous_status": "QUEUED"
}