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

src/Scanner/__Tests/StellaOps.Scanner.Surface.FS.Tests/FileSurfaceManifestStoreTests.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
@@ -225,7 +225,6 @@ public sealed class FileSurfaceManifestStoreTests : IAsyncDisposable
         public async ValueTask<byte[]> ComputeHashAsync(Stream stream, string? algorithmId = null, CancellationToken cancellationToken = default)
         {
             await using var buffer = new MemoryStream();
-using StellaOps.TestKit;
             await stream.CopyToAsync(buffer, cancellationToken).ConfigureAwait(false);
             return SHA256.HashData(buffer.ToArray());
         }