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

src/ScadaLink.CentralUI/Components/Pages/Audit/AuditLogPage.razor.cs

@@ -23,7 +23,9 @@ namespace ScadaLink.CentralUI.Components.Pages.Audit;
 /// <c>?instance=</c> are read on initialization. Bundle E (M7-T13) extends
 /// this with <c>?status=</c> so the Health-dashboard Audit error-rate tile can
 /// drill in to <c>?status=Failed</c>. The ExecutionId follow-up adds
-/// <c>?executionId=</c> for the "View this execution" drill-in. When any param is present we allocate a
+/// <c>?executionId=</c> for the "View this execution" drill-in, and the
+/// ParentExecutionId follow-up adds <c>?parentExecutionId=</c> for the
+/// "View parent execution" drill-in. When any param is present we allocate a
 /// fresh <see cref="AuditLogQueryFilter"/> and assign it to
 /// <see cref="_currentFilter"/>, which kicks the results grid into auto-load
 /// without the user clicking Apply. Unknown values (e.g. an invalid enum name)
@@ -71,6 +73,15 @@ public partial class AuditLogPage
             executionId = parsedExec;
         }
 
+        // ?parentExecutionId= constrains to runs spawned by a given execution.
+        // Lax-parsed like ?executionId=: an unparseable value is silently dropped.
+        Guid? parentExecutionId = null;
+        if (query.TryGetValue("parentExecutionId", out var parentExecValues)
+            && Guid.TryParse(parentExecValues.ToString(), out var parsedParentExec))
+        {
+            parentExecutionId = parsedParentExec;
+        }
+
         string? target = null;
         if (query.TryGetValue("target", out var targetValues))
         {
@@ -128,7 +139,8 @@ public partial class AuditLogPage
         // auto-loads. Pure ?instance= deep links (UI-only) do not trigger auto-load
         // because the filter contract has no instance column — the user still needs
         // to refine + Apply for those.
-        if (correlationId is null && executionId is null && target is null && actor is null
+        if (correlationId is null && executionId is null && parentExecutionId is null
+            && target is null && actor is null
             && sites is null && channels is null && kinds is null && statuses is null)
         {
             return;
@@ -142,7 +154,8 @@ public partial class AuditLogPage
             Target: target,
             Actor: actor,
             CorrelationId: correlationId,
-            ExecutionId: executionId);
+            ExecutionId: executionId,
+            ParentExecutionId: parentExecutionId);
     }
 
     /// <summary>
@@ -252,6 +265,10 @@ public partial class AuditLogPage
         {
             parts.Add(new("executionId", exec.ToString()));
         }
+        if (filter.ParentExecutionId is { } parentExec)
+        {
+            parts.Add(new("parentExecutionId", parentExec.ToString()));
+        }
         if (filter.FromUtc is { } from)
         {
             parts.Add(new("from", from.ToString("O", CultureInfo.InvariantCulture)));