curl -X POST "https://app.talkover.ai/api/v1/campaigns/campaign-uuid/sftp" \
  -H "Authorization: Bearer talq_your_environment_token_here" \
  -H "Content-Type: application/json" \
  -d '{
    "host": "sftp.example.com",
    "port": 22,
    "username": "campaigns_user",
    "auth_type": "password",
    "password": "secret",
    "import_path": "/inbox",
    "export_path": "/outbox",
    "import_schedule": "daily"
  }'

{
  "success": true,
  "data": {
    "id": "sftp-config-uuid-1",
    "campaign_id": "campaign-uuid",
    "host": "sftp.example.com",
    "is_enabled": false,
    "created_at": "2024-01-15T16:00:00Z"
  }
}