feat(scripts): realign Test Run with runtime API, add anonymous-object calls and instance binding

The Test Run sandbox and Monaco analysis modelled a script API that had
drifted from the site runtime's ScriptGlobals, so real scripts failed to
compile in Test Run. Realign both to the runtime surface
(Instance/Scripts/ExternalSystem/Attributes/Children/Parent) and drop the
duplicate ScriptHost stub so the two cannot diverge again.

- Script calls (Scripts.CallShared, Instance.CallScript, Route.To().Call)
  accept an anonymous object instead of a hand-built dictionary, via a
  shared ScriptArgs normalizer; existing dictionary calls still compile.
- Test Run can optionally bind to a deployed instance, so Instance/
  Attributes/CallScript route to it cross-site; adds site-side
  RouteToGetAttributes/RouteToSetAttributes handlers.
- Adds Test Run panels to the API method and template script editors.
- Fixes the TestDatabaseQuery seed script, which queried a table that
  never existed.

Also commits unrelated in-progress work already in the tree: the health
monitoring report loop, site streaming changes, and the Admin/Design
data-connection and SMTP page reorganization.

src/ScadaLink.HealthMonitoring/HealthReportSender.cs

@@ -19,7 +19,13 @@ public class HealthReportSender : BackgroundService
     private readonly string _siteId;
     private readonly StoreAndForwardStorage? _sfStorage;
     private readonly IClusterNodeProvider? _clusterNodeProvider;
-    private long _sequenceNumber;
+
+    // Seeded with Unix-ms at construction so reports from a freshly-active
+    // node always sort after reports from any prior active node for the same
+    // site. Without this seeding, failover would silently drop the new
+    // active's first reports because their per-process counter starts below
+    // the prior active's last sequence number.
+    private long _sequenceNumber = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds();
 
     public HealthReportSender(
         ISiteHealthCollector collector,