Refactor code structure and optimize performance across multiple modules

src/Scanner/__Tests/StellaOps.Scanner.WebService.Tests/SliceEndpointsTests.cs

@@ -24,7 +24,8 @@ public sealed class SliceEndpointsTests : IClassFixture<ScannerApplicationFixtur
         _client = fixture.Factory.CreateClient();
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task QuerySlice_WithValidCve_ReturnsSlice()
     {
         // Arrange
@@ -47,7 +48,8 @@ public sealed class SliceEndpointsTests : IClassFixture<ScannerApplicationFixtur
             $"Unexpected status: {response.StatusCode}");
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task QuerySlice_WithoutScanId_ReturnsBadRequest()
     {
         // Arrange
@@ -66,7 +68,8 @@ public sealed class SliceEndpointsTests : IClassFixture<ScannerApplicationFixtur
             $"Expected BadRequest or Unauthorized, got {response.StatusCode}");
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task QuerySlice_WithoutCveOrSymbols_ReturnsBadRequest()
     {
         // Arrange
@@ -85,7 +88,8 @@ public sealed class SliceEndpointsTests : IClassFixture<ScannerApplicationFixtur
             $"Expected BadRequest or Unauthorized, got {response.StatusCode}");
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task GetSlice_WithValidDigest_ReturnsSlice()
     {
         // Arrange
@@ -102,7 +106,8 @@ public sealed class SliceEndpointsTests : IClassFixture<ScannerApplicationFixtur
             $"Unexpected status: {response.StatusCode}");
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task GetSlice_WithDsseAccept_ReturnsDsseEnvelope()
     {
         // Arrange
@@ -121,7 +126,8 @@ public sealed class SliceEndpointsTests : IClassFixture<ScannerApplicationFixtur
             $"Unexpected status: {response.StatusCode}");
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task ReplaySlice_WithValidDigest_ReturnsReplayResult()
     {
         // Arrange
@@ -141,7 +147,8 @@ public sealed class SliceEndpointsTests : IClassFixture<ScannerApplicationFixtur
             $"Unexpected status: {response.StatusCode}");
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task ReplaySlice_WithoutDigest_ReturnsBadRequest()
     {
         // Arrange
@@ -165,7 +172,8 @@ public sealed class SliceDiffComputerTests
 {
     private readonly SliceDiffComputer _computer = new();
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public void Compare_IdenticalSlices_ReturnsMatch()
     {
         // Arrange
@@ -183,7 +191,8 @@ public sealed class SliceDiffComputerTests
         Assert.Null(result.VerdictDiff);
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public void Compare_DifferentNodes_ReturnsDiff()
     {
         // Arrange
@@ -211,7 +220,8 @@ public sealed class SliceDiffComputerTests
         Assert.Contains("extra-node", result.ExtraNodes);
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public void Compare_DifferentEdges_ReturnsDiff()
     {
         // Arrange
@@ -232,7 +242,8 @@ public sealed class SliceDiffComputerTests
         Assert.Single(result.MissingEdges);
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public void Compare_DifferentVerdict_ReturnsDiff()
     {
         // Arrange
@@ -254,7 +265,8 @@ public sealed class SliceDiffComputerTests
         Assert.Contains("Status:", result.VerdictDiff);
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public void ComputeCacheKey_SameInputs_ReturnsSameKey()
     {
         // Arrange
@@ -269,7 +281,8 @@ public sealed class SliceDiffComputerTests
         Assert.Equal(key1, key2);
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public void ComputeCacheKey_DifferentInputs_ReturnsDifferentKey()
     {
         // Arrange
@@ -283,7 +296,8 @@ public sealed class SliceDiffComputerTests
         Assert.NotEqual(key1, key2);
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public void ToSummary_MatchingSlices_ReturnsMatchMessage()
     {
         // Arrange
@@ -296,7 +310,8 @@ public sealed class SliceDiffComputerTests
         Assert.Contains("match exactly", summary);
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public void ToSummary_DifferingSlices_ReturnsDetailedDiff()
     {
         // Arrange
@@ -360,7 +375,8 @@ public sealed class SliceDiffComputerTests
 /// </summary>
 public sealed class SliceCacheTests
 {
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task TryGetAsync_EmptyCache_ReturnsNull()
     {
         // Arrange
@@ -374,7 +390,8 @@ public sealed class SliceCacheTests
         Assert.Null(result);
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task SetAsync_ThenTryGetAsync_ReturnsEntry()
     {
         // Arrange
@@ -391,7 +408,8 @@ public sealed class SliceCacheTests
         Assert.Equal("sha256:abc123", result!.SliceDigest);
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task TryGetAsync_IncrementsCacheStats()
     {
         // Arrange
@@ -412,7 +430,8 @@ public sealed class SliceCacheTests
         Assert.Equal(0.5, stats.HitRate, 2);
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task ClearAsync_RemovesAllEntries()
     {
         // Arrange
@@ -430,7 +449,8 @@ public sealed class SliceCacheTests
         Assert.Equal(0, stats.EntryCount);
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task RemoveAsync_RemovesSpecificEntry()
     {
         // Arrange
@@ -448,12 +468,14 @@ public sealed class SliceCacheTests
         Assert.NotNull(await cache.TryGetAsync("key2"));
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task Disabled_NeverCaches()
     {
         // Arrange
         var options = Microsoft.Extensions.Options.Options.Create(new SliceCacheOptions { Enabled = false });
         using var cache = new SliceCache(options);
+using StellaOps.TestKit;
         var cacheResult = CreateTestCacheResult();
 
         // Act