fix(javascript): associate requested bindings only with resolved native addons (#6402)

* fix(javascript): associate requested bindings only with resolved native addons

* test(javascript): cover the exact native addon association

---------

Co-authored-by: morluto <76467478+morluto@users.noreply.github.com>

src/application/javascript/ElectronBoundaryGraphNative.ts

@@ -56,7 +56,13 @@ const addNativeBinding = (input: NativeBindingInput): void => {
       ? {}
       : { moduleKind: value.module_kind }),
   }).resolved_path;
-  const addon = resolved === null ? undefined : context.fileNodes.get(resolved);
+  // Extension probing can resolve `./addon.node` to `addon.node.js`; only a
+  // native-addon artifact can expose the requested binding.
+  const addon =
+    resolved === null ||
+    context.filesByPath.get(resolved)?.kind !== "native-addon"
+      ? undefined
+      : context.fileNodes.get(resolved);
   const binding = context.accumulator.addNode({
     kind: "native-export",
     identity: electronObservationIdentity(