feat(centralui): ParentExecutionId column, filter and parent drill-in on the Audit Log page

tests/ScadaLink.CentralUI.Tests/Pages/AuditLogPageScaffoldTests.cs

@@ -214,6 +214,45 @@ public class AuditLogPageScaffoldTests : BunitContext
             Arg.Any<CancellationToken>());
     }
 
+    [Fact]
+    public void NavigateWithParentExecutionIdParam_AppliesFilter_AndAutoLoads()
+    {
+        // The "View parent execution" drill-in (and operator-crafted URLs) land on
+        // /audit/log?parentExecutionId={id}. The page parses the Guid, builds an
+        // AuditLogQueryFilter with ParentExecutionId set, and auto-loads the grid.
+        var parentExecutionId = Guid.Parse("aaaaaaaa-1111-2222-3333-bbbbbbbbbbbb");
+        _queryService = Substitute.For<IAuditLogQueryService>();
+        _queryService.QueryAsync(Arg.Any<AuditLogQueryFilter>(), Arg.Any<AuditLogPaging?>(), Arg.Any<CancellationToken>())
+            .Returns(Task.FromResult<IReadOnlyList<AuditEvent>>(new List<AuditEvent>()));
+
+        var cut = RenderAuditLogPageWithQuery($"parentExecutionId={parentExecutionId}", "Admin");
+
+        cut.WaitForAssertion(() =>
+        {
+            _queryService.Received().QueryAsync(
+                Arg.Is<AuditLogQueryFilter>(f => f.ParentExecutionId == parentExecutionId),
+                Arg.Any<AuditLogPaging?>(),
+                Arg.Any<CancellationToken>());
+        });
+    }
+
+    [Fact]
+    public void NavigateWithUnparseableParentExecutionIdParam_IsSilentlyDropped_NoAutoLoad()
+    {
+        _queryService = Substitute.For<IAuditLogQueryService>();
+
+        var cut = RenderAuditLogPageWithQuery("parentExecutionId=not-a-guid", "Admin");
+
+        // An unparseable parentExecutionId leaves ParentExecutionId null. With no
+        // other filter params present the page renders but does NOT call the query
+        // service.
+        cut.WaitForAssertion(() => Assert.Contains("Audit Log", cut.Markup));
+        _queryService.DidNotReceive().QueryAsync(
+            Arg.Any<AuditLogQueryFilter>(),
+            Arg.Any<AuditLogPaging?>(),
+            Arg.Any<CancellationToken>());
+    }
+
     [Fact]
     public void NavigateWithTargetParam_AppliesTargetFilter()
     {