curl --request GET \
  --url https://api.example.com/api/upload-history

{
  "success": true,
  "history": [
    {
      "transaction_filename": "<string>",
      "gains_filename": "<string>",
      "timestamp": "<string>",
      "transaction_file_size": 123,
      "gains_file_size": 123,
      "status": "<string>",
      "user_email": "<string>",
      "account_id": 123,
      "brokerage_account": "<string>",
      "transactions_processed": 123,
      "months_updated": 123
    }
  ]
}