Gestionar Mensajes Directos

curl -X POST "https://api.x.com/2/dm_conversations/with/1234567890/messages" \
  -H "Authorization: Bearer $USER_ACCESS_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"text": "Hello! How are you?"}'

{
  "data": {
    "dm_conversation_id": "1234567890-0987654321",
    "dm_event_id": "1122334455667788990"
  }
}

{
  "text": "Check out this photo!",
  "attachments": [{
    "media_id": "1234567890123456789"
  }]
}