Should ContributorName use string.IsNullOrWhiteSpace() instead of string.IsNullOrEmpty()?

[hoseinipeyrov]

The ContributorName value object currently validates input using:

string.IsNullOrEmpty(name)

This allows whitespace-only values such as " ", "\t", or "\n" to pass validation, as long as they do not exceed MaxLength.

  string.IsNullOrEmpty(name)
    ? Validation.Invalid("Name cannot be empty")
    : name.Length > MaxLength
      ? Validation.Invalid($"Name cannot be longer than {MaxLength} characters")
      : Validation.Ok;

Was this intentional in the design, or should string.IsNullOrWhiteSpace() be preferred here to ensure whitespace-only names are rejected?

In most domain models, contributor names consisting only of whitespace are considered invalid.