Campaign_Tracker/Campaign_Tracker.Server/ExtensionData/ILegacyLinkedRecord.cs

namespace Campaign_Tracker.Server.ExtensionData;

/// <summary>
/// Contract that every extension record type must satisfy to participate in
/// legacy-identifier linking (AC #1) and nightly integrity checks (AC #4).
/// </summary>
public interface ILegacyLinkedRecord
{
    /// <summary>Domain type name used in integrity reports (e.g. "MunicipalityProfile").</summary>
    string RecordType { get; }

    /// <summary>Stable identifier for this specific record instance (e.g. its primary key).</summary>
    string RecordId { get; }

    /// <summary>The required legacy foreign reference stored on this record.</summary>
    LegacyLinkReference LegacyLink { get; }
}