namespace Mr.BrickAdventures.Progression.Adapters;

/// <summary>
/// What actually goes in a save file: a version alongside the snapshot.
/// </summary>
/// <remarks>
/// The version lives here rather than in the snapshot record so the domain only ever knows the
/// current shape. Migration is entirely this layer's problem.
/// </remarks>
internal sealed record SaveEnvelope<T>(int Version, T Data);