feat(transport): AuditService stamps BundleImportId from correlation context

tests/ScadaLink.ConfigurationDatabase.Tests/AuditServiceTests.cs

@@ -2,6 +2,7 @@ using System.Text.Json;
 using Microsoft.EntityFrameworkCore;
 using ScadaLink.Commons.Entities.Templates;
 using ScadaLink.Commons.Interfaces.Services;
+using ScadaLink.Commons.Interfaces.Transport;
 using ScadaLink.ConfigurationDatabase;
 using ScadaLink.ConfigurationDatabase.Services;
 
@@ -10,6 +11,7 @@ namespace ScadaLink.ConfigurationDatabase.Tests;
 public class AuditServiceTests : IDisposable
 {
     private readonly ScadaLinkDbContext _context;
+    private readonly AuditCorrelationContext _correlationContext;
     private readonly AuditService _auditService;
 
     public AuditServiceTests()
@@ -21,7 +23,8 @@ public class AuditServiceTests : IDisposable
         _context = new ScadaLinkDbContext(options);
         _context.Database.OpenConnection();
         _context.Database.EnsureCreated();
-        _auditService = new AuditService(_context);
+        _correlationContext = new AuditCorrelationContext();
+        _auditService = new AuditService(_context, _correlationContext);
     }
 
     public void Dispose()
@@ -62,7 +65,7 @@ public class AuditServiceTests : IDisposable
             .Options;
 
         using var context2 = new ScadaLinkDbContext(options);
-        var auditService2 = new AuditService(context2);
+        var auditService2 = new AuditService(context2, new AuditCorrelationContext());
 
         var template = new Template("RollbackTemplate");
         context2.Templates.Add(template);
@@ -125,6 +128,39 @@ public class AuditServiceTests : IDisposable
         Assert.DoesNotContain(methods, m => m.Name.Contains("Delete", StringComparison.OrdinalIgnoreCase));
     }
 
+    [Fact]
+    public async Task LogAsync_StampsBundleImportId_FromCorrelationContext()
+    {
+        // Bundle importer sets the correlation context for the duration of ApplyAsync;
+        // every AuditLogEntry written under that scope must carry the BundleImportId so
+        // the imported configuration is attributable to the import session.
+        var bundleId = Guid.NewGuid();
+        _correlationContext.BundleImportId = bundleId;
+
+        await _auditService.LogAsync("admin", "Create", "Template", "1", "BundleImportedTemplate",
+            new { Name = "BundleImportedTemplate" });
+        await _context.SaveChangesAsync();
+
+        var audit = await _context.AuditLogEntries.SingleAsync();
+        Assert.Equal(bundleId, audit.BundleImportId);
+    }
+
+    [Fact]
+    public async Task LogAsync_LeavesBundleImportIdNull_WhenCorrelationContextHasNoValue()
+    {
+        // Default code path (interactive user edit, not a bundle import) must leave
+        // the column NULL so normal audit rows are distinguishable from bundle-import
+        // rows in queries and reports.
+        Assert.Null(_correlationContext.BundleImportId);
+
+        await _auditService.LogAsync("admin", "Create", "Template", "1", "InteractiveTemplate",
+            new { Name = "InteractiveTemplate" });
+        await _context.SaveChangesAsync();
+
+        var audit = await _context.AuditLogEntries.SingleAsync();
+        Assert.Null(audit.BundleImportId);
+    }
+
     // Self-referential POCO used to reproduce a reference cycle in afterState.
     private sealed class CyclicNode
     {