Refactor code structure and optimize performance across multiple modules

src/Signals/__Tests/StellaOps.Signals.Tests/UnknownsDecayServiceTests.cs

@@ -11,6 +11,8 @@ using StellaOps.Signals.Persistence;
 using StellaOps.Signals.Services;
 using Xunit;
 
+
+using StellaOps.TestKit;
 namespace StellaOps.Signals.Tests;
 
 public class UnknownsDecayServiceTests
@@ -55,7 +57,8 @@ public class UnknownsDecayServiceTests
 
     #region ApplyDecayAsync Tests
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task ApplyDecayAsync_EmptySubject_ReturnsZeroCounts()
     {
         var (decayService, _) = CreateServices();
@@ -70,7 +73,8 @@ public class UnknownsDecayServiceTests
         Assert.Equal(0, result.BandChanges);
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task ApplyDecayAsync_SingleUnknown_UpdatesAndPersists()
     {
         var (decayService, _) = CreateServices();
@@ -100,7 +104,8 @@ public class UnknownsDecayServiceTests
         Assert.True(updated[0].UpdatedAt >= now);
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task ApplyDecayAsync_BandChangesTracked()
     {
         var (decayService, _) = CreateServices();
@@ -136,7 +141,8 @@ public class UnknownsDecayServiceTests
         }
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task ApplyDecayAsync_MultipleUnknowns_ProcessesAll()
     {
         var (decayService, _) = CreateServices();
@@ -186,7 +192,8 @@ public class UnknownsDecayServiceTests
 
     #region RunNightlyDecayBatchAsync Tests
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task RunNightlyDecayBatchAsync_ProcessesAllSubjects()
     {
         var (decayService, _) = CreateServices();
@@ -224,7 +231,8 @@ public class UnknownsDecayServiceTests
         Assert.True(result.Duration >= TimeSpan.Zero);
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task RunNightlyDecayBatchAsync_RespectsMaxSubjectsLimit()
     {
         var decayOptions = new UnknownsDecayOptions { MaxSubjectsPerBatch = 1 };
@@ -278,7 +286,8 @@ public class UnknownsDecayServiceTests
         Assert.Equal(1, result.TotalUnknowns);
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task RunNightlyDecayBatchAsync_CancellationRespected()
     {
         var (decayService, _) = CreateServices();
@@ -311,7 +320,8 @@ public class UnknownsDecayServiceTests
 
     #region ApplyDecayToUnknownAsync Tests
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task ApplyDecayToUnknownAsync_UpdatesScoringFields()
     {
         var (decayService, _) = CreateServices();
@@ -342,7 +352,8 @@ public class UnknownsDecayServiceTests
         Assert.NotNull(result.NormalizationTrace);
     }
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task ApplyDecayToUnknownAsync_SetsNextRescanBasedOnBand()
     {
         var (decayService, _) = CreateServices();
@@ -368,7 +379,8 @@ public class UnknownsDecayServiceTests
 
     #region Decay Result Aggregation Tests
 
-    [Fact]
+    [Trait("Category", TestCategories.Unit)]
+        [Fact]
     public async Task ApplyDecayAsync_ResultCountsAreAccurate()
     {
         var (decayService, _) = CreateServices();