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.SiteRuntime/Scripts/ScriptRuntimeContext.cs

@@ -3,6 +3,7 @@ using Microsoft.Extensions.Logging;
 using ScadaLink.Commons.Interfaces.Services;
 using ScadaLink.Commons.Messages.Instance;
 using ScadaLink.Commons.Messages.ScriptExecution;
+using ScadaLink.Commons.Types;
 
 namespace ScadaLink.SiteRuntime.Scripts;
 
@@ -116,8 +117,10 @@ public class ScriptRuntimeContext
     /// Calls a sibling script on the same instance by name (Ask pattern).
     /// WP-20: Enforces recursion limit.
     /// WP-22: Uses Ask pattern for CallScript.
+    /// <paramref name="parameters"/> may be a dictionary or an anonymous object
+    /// (<c>new { name = "Bob" }</c>) — see <see cref="ScriptArgs"/>.
     /// </summary>
-    public async Task<object?> CallScript(string scriptName, IReadOnlyDictionary<string, object?>? parameters = null)
+    public async Task<object?> CallScript(string scriptName, object? parameters = null)
     {
         var nextDepth = _currentCallDepth + 1;
         if (nextDepth > _maxCallDepth)
@@ -131,7 +134,7 @@ public class ScriptRuntimeContext
         var correlationId = Guid.NewGuid().ToString();
         var request = new ScriptCallRequest(
             scriptName,
-            parameters,
+            ScriptArgs.Normalize(parameters),
             nextDepth,
             correlationId);
 
@@ -200,10 +203,12 @@ public class ScriptRuntimeContext
         /// <summary>
         /// WP-17: Executes a shared script inline (direct method call, not actor message).
         /// WP-20: Enforces recursion limit.
+        /// <paramref name="parameters"/> may be a dictionary or an anonymous
+        /// object (<c>new { name = "Bob" }</c>) — see <see cref="ScriptArgs"/>.
         /// </summary>
         public async Task<object?> CallShared(
             string scriptName,
-            IReadOnlyDictionary<string, object?>? parameters = null,
+            object? parameters = null,
             CancellationToken cancellationToken = default)
         {
             var nextDepth = _currentCallDepth + 1;
@@ -215,7 +220,8 @@ public class ScriptRuntimeContext
                 throw new InvalidOperationException(msg);
             }
 
-            return await _library.ExecuteAsync(scriptName, _context, parameters, cancellationToken);
+            return await _library.ExecuteAsync(
+                scriptName, _context, ScriptArgs.Normalize(parameters), cancellationToken);
         }
     }