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

src/Scheduler/__Tests/StellaOps.Scheduler.Queue.Tests/RedisSchedulerQueueTests.cs

@@ -210,7 +210,6 @@ public sealed class RedisSchedulerQueueTests : IAsyncLifetime
             TimeProvider.System,
             async config => (IConnectionMultiplexer)await ConnectionMultiplexer.ConnectAsync(config).ConfigureAwait(false));
 
-using StellaOps.TestKit;
         var message = TestData.CreateRunnerMessage();
         await queue.EnqueueAsync(message);