Refactor code structure and optimize performance across multiple modules

src/__Libraries/__Tests/StellaOps.AuditPack.Tests/AuditReplayE2ETests.cs

@@ -11,6 +11,8 @@ using System.Text.Json;
 using StellaOps.AuditPack.Models;
 using StellaOps.AuditPack.Services;
 
+
+using StellaOps.TestKit;
 namespace StellaOps.AuditPack.Tests;
 
 /// <summary>
@@ -41,7 +43,8 @@ public class AuditReplayE2ETests : IDisposable
         }
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task E2E_ExportTransferReplayOffline_MatchingVerdict()
     {
         // ===== PHASE 1: EXPORT =====
@@ -146,7 +149,8 @@ public class AuditReplayE2ETests : IDisposable
         Assert.Equal(decision, replayResult.OriginalDecision);
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task E2E_ReplayDetectsTamperedSbom()
     {
         // Setup
@@ -222,7 +226,8 @@ public class AuditReplayE2ETests : IDisposable
             tamperedRead.Manifest?.Inputs.SbomDigest);
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task E2E_DeterministicMerkleRoot_SameInputs()
     {
         // Create identical inputs
@@ -271,7 +276,8 @@ public class AuditReplayE2ETests : IDisposable
         Assert.Equal(result1.MerkleRoot, result2.MerkleRoot);
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task E2E_BundleContainsAllRequiredFiles()
     {
         // Setup
@@ -323,7 +329,8 @@ public class AuditReplayE2ETests : IDisposable
         Assert.Contains(filePaths, p => p.Contains("vex"));
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task E2E_FullCycleWithTimeAnchor()
     {
         // Setup with explicit time anchor