Fix build and code structure improvements. New but essential UI functionality. CI improvements. Documentation improvements. AI module improvements.

src/Cli/__Tests/StellaOps.Cli.Tests/AttestationBundleVerifierTests.cs

@@ -1,4 +1,4 @@
-using System.Formats.Tar;
+using System.Formats.Tar;
 using System.IO.Compression;
 using System.Text;
 using System.Text.Json;
@@ -404,7 +404,6 @@ public sealed class AttestationBundleVerifierTests : IDisposable
     {
         var bytes = Encoding.UTF8.GetBytes(content);
         using var dataStream = new MemoryStream(bytes);
-using StellaOps.TestKit;
         var entry = new PaxTarEntry(TarEntryType.RegularFile, name)
         {
             DataStream = dataStream