added todo for callback handling

Author: mertcanaltin

lib/fs.js

@@ -1659,6 +1659,8 @@ function stat(path, options, callback) {
     options.signal.addEventListener('abort', onAbort, { __proto__: null, once: true });
   }
 
+  // TODO(mertcanaltin): Refactor callback handling to avoid double-wrapping and redundant validations.
+  // The current implementation validates and wraps the callback twice in the happy path; optimize when possible.
   req.oncomplete = (err, stats) => {
     if (options.signal) {
       options.signal.removeEventListener('abort', onAbort);