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.Udp/ServiceCollectionExtensions.cs

@@ -0,0 +1,53 @@
+using Microsoft.Extensions.DependencyInjection;
+using StellaOps.Router.Common.Abstractions;
+
+namespace StellaOps.Router.Transport.Udp;
+
+/// <summary>
+/// Extension methods for registering UDP transport services.
+/// </summary>
+public static class ServiceCollectionExtensions
+{
+    /// <summary>
+    /// Adds UDP transport server services to the service collection.
+    /// </summary>
+    /// <param name="services">The service collection.</param>
+    /// <param name="configure">Optional configuration action.</param>
+    /// <returns>The service collection.</returns>
+    public static IServiceCollection AddUdpTransportServer(
+        this IServiceCollection services,
+        Action<UdpTransportOptions>? configure = null)
+    {
+        if (configure is not null)
+        {
+            services.Configure(configure);
+        }
+
+        services.AddSingleton<UdpTransportServer>();
+        services.AddSingleton<ITransportServer>(sp => sp.GetRequiredService<UdpTransportServer>());
+
+        return services;
+    }
+
+    /// <summary>
+    /// Adds UDP transport client services to the service collection.
+    /// </summary>
+    /// <param name="services">The service collection.</param>
+    /// <param name="configure">Optional configuration action.</param>
+    /// <returns>The service collection.</returns>
+    public static IServiceCollection AddUdpTransportClient(
+        this IServiceCollection services,
+        Action<UdpTransportOptions>? configure = null)
+    {
+        if (configure is not null)
+        {
+            services.Configure(configure);
+        }
+
+        services.AddSingleton<UdpTransportClient>();
+        services.AddSingleton<ITransportClient>(sp => sp.GetRequiredService<UdpTransportClient>());
+        services.AddSingleton<IMicroserviceTransport>(sp => sp.GetRequiredService<UdpTransportClient>());
+
+        return services;
+    }
+}