feat(api): Implement Console Export Client and Models

- Added ConsoleExportClient for managing export requests and responses.
- Introduced ConsoleExportRequest and ConsoleExportResponse models.
- Implemented methods for creating and retrieving exports with appropriate headers.

feat(crypto): Add Software SM2/SM3 Cryptography Provider

- Implemented SmSoftCryptoProvider for software-only SM2/SM3 cryptography.
- Added support for signing and verification using SM2 algorithm.
- Included hashing functionality with SM3 algorithm.
- Configured options for loading keys from files and environment gate checks.

test(crypto): Add unit tests for SmSoftCryptoProvider

- Created comprehensive tests for signing, verifying, and hashing functionalities.
- Ensured correct behavior for key management and error handling.

feat(api): Enhance Console Export Models

- Expanded ConsoleExport models to include detailed status and event types.
- Added support for various export formats and notification options.

test(time): Implement TimeAnchorPolicyService tests

- Developed tests for TimeAnchorPolicyService to validate time anchors.
- Covered scenarios for anchor validation, drift calculation, and policy enforcement.

src/Scanner/__Libraries/StellaOps.Scanner.Emit/Composition/CycloneDxComposer.cs

@@ -3,9 +3,10 @@ using System.Collections.Generic;
 using System.Collections.Immutable;
 using System.Globalization;
 using System.Linq;
-using System.Security.Cryptography;
-using System.Text;
-using CycloneDX;
+using System.Security.Cryptography;
+using System.Text;
+using System.Text.Json;
+using CycloneDX;
 using CycloneDX.Models;
 using CycloneDX.Models.Vulnerabilities;
 using JsonSerializer = CycloneDX.Json.Serializer;
@@ -112,8 +113,10 @@ public sealed class CycloneDxComposer
             ? root
             : null;
 
-        request.AdditionalProperties?.TryGetValue("stellaops:composition.manifest", out var compositionUri);
-        request.AdditionalProperties?.TryGetValue("stellaops:composition.recipe", out var compositionRecipeUri);
+        string? compositionUri = null;
+        string? compositionRecipeUri = null;
+        request.AdditionalProperties?.TryGetValue("stellaops:composition.manifest", out compositionUri);
+        request.AdditionalProperties?.TryGetValue("stellaops:composition.recipe", out compositionRecipeUri);
 
         return new CycloneDxArtifact
         {