curl --request POST \
  --url https://apigcp.trynia.ai/v2/local-folders/preview-db \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "database": {
    "filename": "<string>",
    "content": "aSDinaTvuI8gbWludGxpZnk="
  }
}
'

{
  "tables": [
    {
      "name": "<string>",
      "row_count": 123,
      "columns": [
        "<string>"
      ]
    }
  ],
  "sample_content": [
    "<string>"
  ],
  "detected_type": "<string>"
}