fix(central-ui): Log on the inbound editor diagnostics host; sandbox Log delegates to Instance (Task 7 review)

src/ZB.MOM.WW.ScadaBridge.CentralUI/ScriptAnalysis/InboundScriptHost.cs

@@ -28,6 +28,14 @@ public class InboundScriptHost
     /// </summary>
     public DatabaseAccessor Database { get; } = new();
 
+    /// <summary>
+    /// Leveled per-run logging. Editor mirror of
+    /// ZB.MOM.WW.ScadaBridge.InboundAPI.InboundScriptLogger (step logs design 2026-09-09 D4);
+    /// shares <see cref="SandboxLog"/> with the Test Run sandbox because only the signatures
+    /// matter here — analysis never invokes it.
+    /// </summary>
+    public SandboxLog Log { get; } = new();
+
     /// <summary>
     /// The cancellation token for the operation.
     /// </summary>

src/ZB.MOM.WW.ScadaBridge.CentralUI/ScriptAnalysis/SandboxScriptHost.cs

@@ -91,9 +91,11 @@ public class SandboxScriptHost
     /// <summary>
     /// Sandbox mirror of the site runtime's <c>Log</c> global (step logs design 2026-09-09 D4).
     /// Present so a script that logs BINDS in the Test Run editor; lines go to the Test Run
-    /// console pane and are never audited.
+    /// console pane and are never audited. Delegates to <see cref="SandboxInstanceContext.Log"/>
+    /// exactly as the runtime's <c>ScriptGlobals.Log =&gt; Instance.Log</c> does, so
+    /// <c>Log</c> and <c>Instance.Log</c> are the same object here too.
     /// </summary>
-    public SandboxLog Log { get; } = new();
+    public SandboxLog Log => Instance.Log;
 }
 
 /// <summary>