finish secrets finding work and audit remarks work save

src/Scanner/__Libraries/StellaOps.Scanner.VulnSurfaces/Builder/VulnSurfaceBuilder.cs

@@ -32,6 +32,7 @@ public sealed class VulnSurfaceBuilder : IVulnSurfaceBuilder
     private readonly ITriggerMethodExtractor _triggerExtractor;
     private readonly IEnumerable<IInternalCallGraphBuilder> _graphBuilders;
     private readonly ILogger<VulnSurfaceBuilder> _logger;
+    private readonly TimeProvider _timeProvider;
 
     public VulnSurfaceBuilder(
         IEnumerable<IPackageDownloader> downloaders,
@@ -39,7 +40,8 @@ public sealed class VulnSurfaceBuilder : IVulnSurfaceBuilder
         IMethodDiffEngine diffEngine,
         ITriggerMethodExtractor triggerExtractor,
         IEnumerable<IInternalCallGraphBuilder> graphBuilders,
-        ILogger<VulnSurfaceBuilder> logger)
+        ILogger<VulnSurfaceBuilder> logger,
+        TimeProvider? timeProvider = null)
     {
         _downloaders = downloaders ?? throw new ArgumentNullException(nameof(downloaders));
         _fingerprinters = fingerprinters ?? throw new ArgumentNullException(nameof(fingerprinters));
@@ -47,6 +49,7 @@ public sealed class VulnSurfaceBuilder : IVulnSurfaceBuilder
         _triggerExtractor = triggerExtractor ?? throw new ArgumentNullException(nameof(triggerExtractor));
         _graphBuilders = graphBuilders ?? throw new ArgumentNullException(nameof(graphBuilders));
         _logger = logger ?? throw new ArgumentNullException(nameof(logger));
+        _timeProvider = timeProvider ?? TimeProvider.System;
     }
 
     /// <inheritdoc />
@@ -239,7 +242,7 @@ public sealed class VulnSurfaceBuilder : IVulnSurfaceBuilder
                 TriggerCount = triggerCount,
                 Status = VulnSurfaceStatus.Computed,
                 Confidence = ComputeConfidence(diff, sinks.Count),
-                ComputedAt = DateTimeOffset.UtcNow
+                ComputedAt = _timeProvider.GetUtcNow()
             };
 
             sw.Stop();