Refactor code structure and optimize performance across multiple modules

src/Findings/__Tests/StellaOps.Findings.Ledger.Tests/PolicyEngineEvaluationServiceTests.cs

@@ -8,6 +8,8 @@ using StellaOps.Findings.Ledger.Infrastructure.Policy;
 using StellaOps.Findings.Ledger.Options;
 using Xunit;
 
+
+using StellaOps.TestKit;
 namespace StellaOps.Findings.Ledger.Tests;
 
 public sealed class PolicyEngineEvaluationServiceTests
@@ -15,7 +17,8 @@ public sealed class PolicyEngineEvaluationServiceTests
     private const string TenantId = "tenant-1";
     private static readonly DateTimeOffset Now = DateTimeOffset.UtcNow;
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task EvaluateAsync_UsesPolicyEngineAndCachesResult()
     {
         var handler = new StubHttpHandler(_ => new HttpResponseMessage(HttpStatusCode.OK)
@@ -59,7 +62,8 @@ public sealed class PolicyEngineEvaluationServiceTests
         Assert.Equal("policy://explain/123", second.Rationale[0]?.GetValue<string>());
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task EvaluateAsync_FallsBackToInlineWhenRequestFails()
     {
         var handler = new StubHttpHandler(_ => new HttpResponseMessage(HttpStatusCode.InternalServerError));
@@ -78,7 +82,8 @@ public sealed class PolicyEngineEvaluationServiceTests
         Assert.Equal(1, handler.CallCount);
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task EvaluateAsync_UsesInlineWhenNoBaseAddressConfigured()
     {
         var handler = new StubHttpHandler(_ => throw new InvalidOperationException("Handler should not be invoked."));