save audit remarks applications progress

src/Scanner/StellaOps.Scanner.WebService/Endpoints/UnknownsEndpoints.cs

@@ -55,6 +55,7 @@ internal static class UnknownsEndpoints
         [FromQuery] int? limit,
         IUnknownRepository repository,
         IUnknownRanker ranker,
+        TimeProvider timeProvider,
         CancellationToken cancellationToken)
     {
         // Validate and default pagination
@@ -95,9 +96,10 @@ internal static class UnknownsEndpoints
             PageSize: pageSize);
 
         var result = await repository.ListUnknownsAsync(query, cancellationToken);
+        var now = timeProvider.GetUtcNow();
 
         return Results.Ok(new UnknownsListResponse(
-            Items: result.Items.Select(UnknownItemResponse.FromUnknownItem).ToList(),
+            Items: result.Items.Select(item => UnknownItemResponse.FromUnknownItem(item, now)).ToList(),
             TotalCount: result.TotalCount,
             Page: pageNum,
             PageSize: pageSize,
@@ -195,7 +197,7 @@ public sealed record UnknownItemResponse(
     ContainmentResponse? Containment,
     DateTimeOffset CreatedAt)
 {
-    public static UnknownItemResponse FromUnknownItem(UnknownItem item) => new(
+    public static UnknownItemResponse FromUnknownItem(UnknownItem item, DateTimeOffset now) => new(
         Id: Guid.TryParse(item.Id, out var id) ? id : Guid.Empty,
         SubjectRef: item.ArtifactPurl ?? item.ArtifactDigest,
         Kind: string.Join(",", item.Reasons),
@@ -209,7 +211,7 @@ public sealed record UnknownItemResponse(
         Containment: item.Containment != null
             ? new ContainmentResponse(item.Containment.Seccomp, item.Containment.Fs)
             : null,
-        CreatedAt: DateTimeOffset.UtcNow); // Would come from Unknown.SysFrom
+        CreatedAt: now); // Would come from Unknown.SysFrom
 }
 
 /// <summary>