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

src/Scanner/StellaOps.Scanner.Worker/Program.cs

@@ -283,7 +283,8 @@ using (var scope = host.Services.CreateScope())
 
 await host.RunAsync();
 
-public partial class Program;
+// Make Program class file-scoped to prevent it from being exposed to referencing assemblies
+file sealed partial class Program;
 
 public sealed class SurfaceCacheOptionsConfigurator : IConfigureOptions<SurfaceCacheOptions>
 {