refactor(dotnet): centralize runtime audit trail

src/dotnet/QuantEngine.Core.Tests/FactorComputationServiceTests.cs

@@ -2,6 +2,7 @@ using System.Collections.Generic;
 using System.IO;
 using System.Threading.Tasks;
 using Moq;
+using QuantEngine.Application.Interfaces;
 using QuantEngine.Application.Services;
 using QuantEngine.Core.Domain;
 using QuantEngine.Core.Interfaces;
@@ -15,39 +16,17 @@ public class FactorComputationServiceTests
     public async Task ComputeAndAppendFactorOutputs_WritesAuditAndHistory()
     {
         var storeMock = new Mock<IPostgresqlHistoryStore>();
+        var auditTrailMock = new Mock<IRuntimeAuditTrailService>();
         storeMock.Setup(s => s.AppendAsync(It.IsAny<string>(), It.IsAny<IDictionary<string, object?>>()))
             .ReturnsAsync(1);
 
         var history = new HistoryIngestionService(storeMock.Object);
-        var service = new FactorComputationService(history);
-
-        var root = FindRepoRoot();
-        var auditPath = Path.Combine(root, "Temp", "factor_audit", "005930.jsonl");
-        if (File.Exists(auditPath))
-        {
-            File.Delete(auditPath);
-        }
+        var service = new FactorComputationService(history, auditTrailMock.Object);
 
         var outputs = new FactorOutputs(1, 2, 3, 4, 5, 6, 7);
         await service.AppendFactorOutputsAsync("005930", "v1", outputs);
 
         storeMock.Verify(s => s.AppendAsync("factor_output_history", It.IsAny<IDictionary<string, object?>>()), Times.Exactly(7));
-        Assert.True(File.Exists(auditPath));
-        Assert.Contains("PERSISTED", File.ReadAllText(auditPath));
-    }
-
-    private static string FindRepoRoot()
-    {
-        var current = new DirectoryInfo(System.AppContext.BaseDirectory);
-        while (current != null)
-        {
-            if (Directory.Exists(Path.Combine(current.FullName, ".git")))
-            {
-                return current.FullName;
-            }
-            current = current.Parent;
-        }
-
-        throw new InvalidOperationException("Repository root not found.");
+        auditTrailMock.Verify(a => a.Append("factor_audit", "005930", It.IsAny<FactorComputationAudit>()), Times.Once);
     }
 }

src/dotnet/QuantEngine.Core.Tests/KisDataCollectionOrchestratorTests.cs

@@ -3,6 +3,8 @@ using Moq;
 using System.Reflection;
 using System.Text.Json;
 using Microsoft.Extensions.Logging;
+using QuantEngine.Application.Interfaces;
+using QuantEngine.Application.Models;
 using QuantEngine.Core.Interfaces;
 using QuantEngine.Application.Services;
 
@@ -13,6 +15,7 @@ public class KisDataCollectionOrchestratorTests
     private readonly Mock<IKisApiClient> _kisApiClientMock;
     private readonly Mock<ICollectionRepository> _repositoryMock;
     private readonly Mock<ILogger<KisDataCollectionOrchestrator>> _loggerMock;
+    private readonly Mock<IRuntimeAuditTrailService> _auditTrailMock;
     private readonly PriceDataNormalizer _normalizer;
     private readonly SourcePriorityResolver _priorityResolver;
     private readonly KisDataCollectionOrchestrator _orchestrator;
@@ -22,6 +25,7 @@ public class KisDataCollectionOrchestratorTests
         _kisApiClientMock = new Mock<IKisApiClient>();
         _repositoryMock = new Mock<ICollectionRepository>();
         _loggerMock = new Mock<ILogger<KisDataCollectionOrchestrator>>();
+        _auditTrailMock = new Mock<IRuntimeAuditTrailService>();
         _priorityResolver = new SourcePriorityResolver();
         _normalizer = new PriceDataNormalizer(_priorityResolver);
 
@@ -30,7 +34,8 @@ public class KisDataCollectionOrchestratorTests
             _repositoryMock.Object,
             _normalizer,
             _priorityResolver,
-            _loggerMock.Object
+            _loggerMock.Object,
+            _auditTrailMock.Object
         );
     }
 
@@ -93,12 +98,6 @@ public class KisDataCollectionOrchestratorTests
         var runId = "test-run-002";
         var ticker = "005930";
         var account = "mock";
-        var auditPath = Path.Combine(FindRepoRoot(), "Temp", "collection_audit", $"{runId}.jsonl");
-        if (File.Exists(auditPath))
-        {
-            File.Delete(auditPath);
-        }
-
         _repositoryMock
             .Setup(r => r.GetLatestSnapshotsForTickerAsync(ticker, It.IsAny<int>()))
             .ReturnsAsync(new List<CollectionSnapshotRecord>());
@@ -133,8 +132,7 @@ public class KisDataCollectionOrchestratorTests
         Assert.NotNull(result);
         Assert.Equal("COMPLETED", result.Status);
         Assert.Equal(1, result.SuccessCount);
-        Assert.True(File.Exists(auditPath));
-        Assert.Contains("COMPLETED", File.ReadAllText(auditPath));
+        _auditTrailMock.Verify(a => a.Append("collection_audit", runId, It.IsAny<CollectionExecutionAudit>()), Times.Exactly(2));
 
         _kisApiClientMock.Verify(
             k => k.GetCurrentPriceAsync(ticker, account),