feat(audit): ParentExecutionId filter in the CLI and ManagementService

tests/ScadaLink.ManagementService.Tests/AuditEndpointsTests.cs

@@ -460,6 +460,38 @@ public class AuditEndpointsTests
         Assert.Null(filter.ExecutionId);
     }
 
+    [Fact]
+    public void ParseFilter_ParentExecutionId_ParsesIntoSingleValueGuid()
+    {
+        // parentExecutionId is a single-value Guid? filter — mirrors executionId.
+        var parentExecutionId = Guid.NewGuid();
+        var query = new Microsoft.AspNetCore.Http.QueryCollection(
+            new Dictionary<string, Microsoft.Extensions.Primitives.StringValues>
+            {
+                ["parentExecutionId"] = parentExecutionId.ToString(),
+            });
+
+        var filter = AuditEndpoints.ParseFilter(query);
+
+        Assert.Equal(parentExecutionId, filter.ParentExecutionId);
+    }
+
+    [Fact]
+    public void ParseFilter_UnparseableParentExecutionId_IsDroppedSilently()
+    {
+        // Lax-parse contract: an unparseable parentExecutionId is dropped (no 400) —
+        // mirrors the executionId parse.
+        var query = new Microsoft.AspNetCore.Http.QueryCollection(
+            new Dictionary<string, Microsoft.Extensions.Primitives.StringValues>
+            {
+                ["parentExecutionId"] = "not-a-guid",
+            });
+
+        var filter = AuditEndpoints.ParseFilter(query);
+
+        Assert.Null(filter.ParentExecutionId);
+    }
+
     [Fact]
     public async Task Query_RepeatedChannelParams_ReachRepositoryAsMultiValueFilter()
     {