Add unit tests for Router configuration and transport layers

- Implemented tests for RouterConfig, RoutingOptions, StaticInstanceConfig, and RouterConfigOptions to ensure default values are set correctly.
- Added tests for RouterConfigProvider to validate configurations and ensure defaults are returned when no file is specified.
- Created tests for ConfigValidationResult to check success and error scenarios.
- Developed tests for ServiceCollectionExtensions to verify service registration for RouterConfig.
- Introduced UdpTransportTests to validate serialization, connection, request-response, and error handling in UDP transport.
- Added scripts for signing authority gaps and hashing DevPortal SDK snippets.

src/__Libraries/StellaOps.Router.Transport.InMemory/ServiceCollectionExtensions.cs

@@ -35,6 +35,7 @@ public static class ServiceCollectionExtensions
         // Register interfaces
         services.TryAddSingleton<ITransportServer>(sp => sp.GetRequiredService<InMemoryTransportServer>());
         services.TryAddSingleton<ITransportClient>(sp => sp.GetRequiredService<InMemoryTransportClient>());
+        services.TryAddSingleton<IMicroserviceTransport>(sp => sp.GetRequiredService<InMemoryTransportClient>());
 
         return services;
     }
@@ -81,6 +82,7 @@ public static class ServiceCollectionExtensions
         services.TryAddSingleton<InMemoryConnectionRegistry>();
         services.TryAddSingleton<InMemoryTransportClient>();
         services.TryAddSingleton<ITransportClient>(sp => sp.GetRequiredService<InMemoryTransportClient>());
+        services.TryAddSingleton<IMicroserviceTransport>(sp => sp.GetRequiredService<InMemoryTransportClient>());
 
         return services;
     }