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/Services/RiskProfileConfigurationService.cs

@@ -2,6 +2,7 @@ using System.Collections.Concurrent;
 using System.Text.Json;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Options;
+using StellaOps.Cryptography;
 using StellaOps.Policy.Engine.Options;
 using StellaOps.Policy.RiskProfile.Hashing;
 using StellaOps.Policy.RiskProfile.Merge;
@@ -27,12 +28,14 @@ public sealed class RiskProfileConfigurationService
 
     public RiskProfileConfigurationService(
         ILogger<RiskProfileConfigurationService> logger,
-        IOptions<PolicyEngineOptions> options)
+        IOptions<PolicyEngineOptions> options,
+        ICryptoHash cryptoHash)
     {
         _logger = logger ?? throw new ArgumentNullException(nameof(logger));
         _options = options?.Value.RiskProfile ?? throw new ArgumentNullException(nameof(options));
+        ArgumentNullException.ThrowIfNull(cryptoHash);
         _mergeService = new RiskProfileMergeService();
-        _hasher = new RiskProfileHasher();
+        _hasher = new RiskProfileHasher(cryptoHash);
         _validator = new RiskProfileValidator();
         _profileCache = new ConcurrentDictionary<string, RiskProfileModel>(StringComparer.OrdinalIgnoreCase);
         _resolvedCache = new ConcurrentDictionary<string, RiskProfileModel>(StringComparer.OrdinalIgnoreCase);