stabilizaiton work - projects rework for maintenanceability and ui livening

src/__Libraries/StellaOps.AuditPack/Services/IReplayAttestationSigner.cs

@@ -0,0 +1,11 @@
+namespace StellaOps.AuditPack.Services;
+
+/// <summary>
+/// Interface for signing replay attestations.
+/// </summary>
+public interface IReplayAttestationSigner
+{
+    Task<DsseSignatureResult> SignAsync(
+        byte[] payload,
+        CancellationToken cancellationToken = default);
+}