feat(ui): add Node column + filter to SiteCalls grid

src/ScadaLink.SiteCallAudit/SiteCallAuditActor.cs

@@ -232,7 +232,8 @@ public class SiteCallAuditActor : ReceiveActor
             // TerminalAtUtc IS NULL AND CreatedAtUtc < cutoff composes with the
             // keyset cursor, so the page is always honest (full pages, no empty
             // pages with a non-null next cursor).
-            StuckCutoffUtc: request.StuckOnly ? stuckCutoff : null);
+            StuckCutoffUtc: request.StuckOnly ? stuckCutoff : null,
+            SourceNode: NullIfBlank(request.SourceNodeFilter));
 
         var pageSize = Math.Clamp(request.PageSize, 1, MaxPageSize);
         var paging = new SiteCallPaging(
@@ -633,7 +634,8 @@ public class SiteCallAuditActor : ReceiveActor
             CreatedAtUtc: row.CreatedAtUtc,
             UpdatedAtUtc: row.UpdatedAtUtc,
             TerminalAtUtc: row.TerminalAtUtc,
-            IsStuck: IsStuck(row, stuckCutoff));
+            IsStuck: IsStuck(row, stuckCutoff),
+            SourceNode: row.SourceNode);
     }
 
     private static SiteCallDetail ToDetail(SiteCall row)