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

src/__Libraries/StellaOps.TestKit/Fixtures/ValkeyFixture.cs

@@ -85,7 +85,8 @@ public sealed class ValkeyFixture : IAsyncLifetime, IDisposable
         _container = new ContainerBuilder()
             .WithImage("redis:7-alpine")
             .WithPortBinding(6379, true) // Bind to random host port
-            .WithWaitStrategy(Wait.ForUnixContainer().UntilPortIsAvailable(6379))
+            .WithWaitStrategy(Wait.ForUnixContainer()
+                .UntilCommandIsCompleted("redis-cli", "ping"))
             .Build();
 
         await _container.StartAsync();