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

src/Scanner/__Tests/StellaOps.Scanner.Reachability.Tests/SubgraphExtractorTests.cs

@@ -3,7 +3,7 @@
 using Microsoft.Extensions.Logging.Abstractions;
 using Moq;
 using StellaOps.Scanner.Reachability;
-using StellaOps.Scanner.Reachability.Models;
+// Models are defined in the StellaOps.Scanner.Reachability namespace
 using Xunit;
 
 using StellaOps.TestKit;