feat(eidas): Implement eIDAS Crypto Plugin with dependency injection and signing capabilities

- Added ServiceCollectionExtensions for eIDAS crypto providers.
- Implemented EidasCryptoProvider for handling eIDAS-compliant signatures.
- Created LocalEidasProvider for local signing using PKCS#12 keystores.
- Defined SignatureLevel and SignatureFormat enums for eIDAS compliance.
- Developed TrustServiceProviderClient for remote signing via TSP.
- Added configuration support for eIDAS options in the project file.
- Implemented unit tests for SM2 compliance and crypto operations.
- Introduced dependency injection extensions for SM software and remote plugins.

src/Scanner/StellaOps.Scanner.Worker/Orchestration/PoEOrchestrator.cs

@@ -4,7 +4,7 @@ using Microsoft.Extensions.Logging;
 using StellaOps.Attestor;
 using StellaOps.Scanner.Core.Configuration;
 using StellaOps.Scanner.Reachability;
-using StellaOps.Scanner.Reachability.Models;
+using StellaOps.Attestor;
 using StellaOps.Signals.Storage;
 
 namespace StellaOps.Scanner.Worker.Orchestration;
@@ -42,7 +42,7 @@ public class PoEOrchestrator
     /// <param name="cancellationToken">Cancellation token</param>
     /// <returns>List of generated PoE hashes</returns>
     public async Task<IReadOnlyList<PoEResult>> GeneratePoEArtifactsAsync(
-        ScanContext context,
+        PoEScanContext context,
         IReadOnlyList<VulnerabilityMatch> vulnerabilities,
         PoEConfiguration configuration,
         CancellationToken cancellationToken = default)
@@ -129,8 +129,8 @@ public class PoEOrchestrator
     /// Generate a single PoE artifact for a subgraph.
     /// </summary>
     private async Task<PoEResult> GenerateSinglePoEAsync(
-        Subgraph subgraph,
-        ScanContext context,
+        PoESubgraph subgraph,
+        PoEScanContext context,
         PoEConfiguration configuration,
         CancellationToken cancellationToken)
     {
@@ -201,7 +201,7 @@ public class PoEOrchestrator
         );
     }
 
-    private string[] GenerateReproSteps(ScanContext context, Subgraph subgraph)
+    private string[] GenerateReproSteps(PoEScanContext context, PoESubgraph subgraph)
     {
         return new[]
         {

src/Scanner/StellaOps.Scanner.Worker/Processing/PoE/PoEGenerationStageExecutor.cs

@@ -9,7 +9,7 @@ using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Options;
 using StellaOps.Scanner.Core.Configuration;
 using StellaOps.Scanner.Core.Contracts;
-using StellaOps.Scanner.Reachability.Models;
+using StellaOps.Attestor;
 using StellaOps.Scanner.Worker.Orchestration;
 
 namespace StellaOps.Scanner.Worker.Processing.PoE;
@@ -138,7 +138,7 @@ public sealed class PoEGenerationStageExecutor : IScanStageExecutor
         }
     }
 
-    private ScanContext BuildScanContext(ScanJobContext context)
+    private PoEScanContext BuildScanContext(ScanJobContext context)
     {
         // Extract scan metadata from job context
         var scanId = context.ScanId;
@@ -169,7 +169,7 @@ public sealed class PoEGenerationStageExecutor : IScanStageExecutor
         // Get configuration path
         var configPath = "etc/scanner.yaml"; // Default
 
-        return new ScanContext(
+        return new PoEScanContext(
             ScanId: scanId,
             GraphHash: graphHash ?? "blake3:unknown",
             BuildId: buildId ?? "gnu-build-id:unknown",

src/Scanner/StellaOps.Scanner.Worker/StellaOps.Scanner.Worker.csproj

@@ -33,5 +33,7 @@
     <ProjectReference Include="../StellaOps.Scanner.Analyzers.Native/StellaOps.Scanner.Analyzers.Native.csproj" />
     <ProjectReference Include="../../Unknowns/__Libraries/StellaOps.Unknowns.Core/StellaOps.Unknowns.Core.csproj" />
     <ProjectReference Include="../../BinaryIndex/__Libraries/StellaOps.BinaryIndex.Core/StellaOps.BinaryIndex.Core.csproj" />
+    <ProjectReference Include="../../Attestor/StellaOps.Attestor/StellaOps.Attestor.Core/StellaOps.Attestor.Core.csproj" />
+    <ProjectReference Include="../../Signals/StellaOps.Signals/StellaOps.Signals.csproj" />
   </ItemGroup>
 </Project>