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/__Libraries/StellaOps.Cryptography/CryptoComplianceOptions.cs

@@ -0,0 +1,70 @@
+namespace StellaOps.Cryptography;
+
+/// <summary>
+/// Configuration options for cryptographic compliance.
+/// </summary>
+public sealed class CryptoComplianceOptions
+{
+    /// <summary>
+    /// The configuration section key for binding.
+    /// </summary>
+    public const string SectionKey = "Crypto:Compliance";
+
+    /// <summary>
+    /// Active compliance profile ID.
+    /// Valid values: "world", "fips", "gost", "sm", "kcmvp", "eidas".
+    /// Default: "world".
+    /// Can be overridden by STELLAOPS_CRYPTO_COMPLIANCE_PROFILE environment variable.
+    /// </summary>
+    public string ProfileId { get; set; } = "world";
+
+    /// <summary>
+    /// When true, fail on non-compliant algorithm usage.
+    /// Default: true.
+    /// Can be overridden by STELLAOPS_CRYPTO_STRICT_VALIDATION environment variable.
+    /// </summary>
+    public bool StrictValidation { get; set; } = true;
+
+    /// <summary>
+    /// When StrictValidation=false, emit warning instead of silently proceeding.
+    /// Default: true.
+    /// </summary>
+    public bool WarnOnNonCompliant { get; set; } = true;
+
+    /// <summary>
+    /// Allow Interop purpose to override profile algorithm with SHA-256.
+    /// Default: true.
+    /// </summary>
+    public bool AllowInteropOverride { get; set; } = true;
+
+    /// <summary>
+    /// Enable telemetry for all crypto operations.
+    /// Default: true.
+    /// </summary>
+    public bool EnableTelemetry { get; set; } = true;
+
+    /// <summary>
+    /// Custom purpose-to-algorithm overrides that take precedence over profile defaults.
+    /// Keys are from <see cref="HashPurpose"/>, values are from <see cref="HashAlgorithms"/>.
+    /// </summary>
+    public Dictionary<string, string>? PurposeOverrides { get; set; }
+
+    /// <summary>
+    /// Applies environment variable overrides.
+    /// </summary>
+    public void ApplyEnvironmentOverrides()
+    {
+        var profileEnv = Environment.GetEnvironmentVariable("STELLAOPS_CRYPTO_COMPLIANCE_PROFILE");
+        if (!string.IsNullOrWhiteSpace(profileEnv))
+        {
+            ProfileId = profileEnv.Trim().ToLowerInvariant();
+        }
+
+        var strictEnv = Environment.GetEnvironmentVariable("STELLAOPS_CRYPTO_STRICT_VALIDATION");
+        if (!string.IsNullOrWhiteSpace(strictEnv) &&
+            bool.TryParse(strictEnv, out var strict))
+        {
+            StrictValidation = strict;
+        }
+    }
+}