Registro de agente

curl -X POST "https://api.firecrawl.dev/v2/agent-signup" \
  -H "Content-Type: application/json" \
  -d '{
    "email": "user@company.com",
    "agent_name": "Research Assistant",
    "accept_terms": true
  }'

{
  "success": true,
  "api_key": "fc-abc123...",
  "sponsor_status": "pending",
  "credit_limit": 50,
  "credits_remaining": 50,
  "verification_deadline_at": "2026-03-23T12:00:00.000Z",
  "tos_url": "https://firecrawl.dev/terms-of-service"
}