curl -X POST https://api.parsetx.dev/v1/enrich/async \
  -H "X-API-Key: ptx_live_..." \
  -H "Content-Type: application/json" \
  -d '{
    "transactions": [
      "AMZN Mktp US", "UBER EATS", "..." // up to 500
    ]
  }'

{
  "job_id": "84c8a82d-1234-5678-abcd-ef0123456789",
  "status": "queued",
  "poll_url": "/v1/enrich/jobs/84c8a82d-1234-5678-abcd-ef0123456789"
}