Add unit tests for RabbitMq and Udp transport servers and clients

- Implemented comprehensive unit tests for RabbitMqTransportServer, covering constructor, disposal, connection management, event handlers, and exception handling.
- Added configuration tests for RabbitMqTransportServer to validate SSL, durable queues, auto-recovery, and custom virtual host options.
- Created unit tests for UdpFrameProtocol, including frame parsing and serialization, header size validation, and round-trip data preservation.
- Developed tests for UdpTransportClient, focusing on connection handling, event subscriptions, and exception scenarios.
- Established tests for UdpTransportServer, ensuring proper start/stop behavior, connection state management, and event handling.
- Included tests for UdpTransportOptions to verify default values and modification capabilities.
- Enhanced service registration tests for Udp transport services in the dependency injection container.

src/Policy/StellaOps.Policy.Engine/Endpoints/ProfileExportEndpoints.cs

@@ -3,6 +3,7 @@ using System.Text.Json;
 using Microsoft.AspNetCore.Http.HttpResults;
 using Microsoft.AspNetCore.Mvc;
 using StellaOps.Auth.Abstractions;
+using StellaOps.Cryptography;
 using StellaOps.Policy.Engine.Services;
 using StellaOps.Policy.RiskProfile.Export;
 
@@ -145,7 +146,8 @@ internal static class ProfileExportEndpoints
         HttpContext context,
         [FromBody] ImportProfilesRequest request,
         RiskProfileConfigurationService profileService,
-        ProfileExportService exportService)
+        ProfileExportService exportService,
+        ICryptoHash cryptoHash)
     {
         var scopeResult = ScopeAuthorization.RequireScope(context, StellaOpsScopes.PolicyEdit);
         if (scopeResult is not null)
@@ -167,6 +169,7 @@ internal static class ProfileExportEndpoints
 
         // Create an export service with save capability
         var importExportService = new ProfileExportService(
+            cryptoHash: cryptoHash,
             timeProvider: TimeProvider.System,
             profileLookup: id => profileService.GetProfile(id),
             lifecycleLookup: null,