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

src/Policy/__Tests/StellaOps.Policy.Tests/SplSchemaResourceTests.cs

@@ -1,4 +1,4 @@
-using System.Text.Json;
+using System.Text.Json;
 using StellaOps.Policy;
 using Xunit;
 
@@ -14,7 +14,6 @@ public class SplSchemaResourceTests
     {
         var schema = SplSchemaResource.GetSchema();
         using var doc = JsonDocument.Parse(schema);
-using StellaOps.TestKit;
         var match = doc.RootElement
             .GetProperty("properties")
             .GetProperty("spec")