public class ScannedDocument
{
    public Guid Id { get; set; }
    public Guid BatchId { get; set; }
    public string ObjectKey { get; set; } = null!;
    public string Sha256 { get; set; } = null!;
    public string ContentType { get; set; } = null!;
    public long FileSizeBytes { get; set; }
    public DateTimeOffset UploadedAt { get; set; }

    public DigitizationBatch Batch { get; set; } = null!;
}