Upload Documento Empresa

curl -X POST http://localhost:3000/sub-accounts/document/company \
  -H "api_key: ak_1234567890abcdef" \
  -H "api_secret: as_1234567890abcdef" \
  -F "documentType=SOCIAL_CONTRACT" \
  -F "file=@contrato-social.pdf"

{
  "status": "success",
  "message": "Documento da empresa enviado com sucesso.",
  "data": {
    "filename": "contrato-social.pdf",
    "document_type": "SOCIAL_CONTRACT",
    "document_format": "PDF"
  }
}