fix: ensure app load is limited to real asar files when appropriate (#39808)

Co-authored-by: trop[bot] <37223003+trop[bot]@users.noreply.github.com>
Co-authored-by: Samuel Attard <marshallofsound@electronjs.org>

shell/common/node_bindings.cc

@@ -512,6 +512,13 @@ node::Environment* NodeBindings::CreateEnvironment(
                          electron::fuses::IsOnlyLoadAppFromAsarEnabled()
                              ? app_asar_search_paths
                              : search_paths));
+    context->Global()->SetPrivate(
+        context,
+        v8::Private::ForApi(
+            isolate, gin::ConvertToV8(isolate, "appSearchPathsOnlyLoadASAR")
+                         .As<v8::String>()),
+        gin::ConvertToV8(isolate,
+                         electron::fuses::IsOnlyLoadAppFromAsarEnabled()));
   }
 
   base::FilePath resources_path = GetResourcesPath();