Convert more CJS to ESM: WebElement, enhancedRetryFailedStep plugin

Co-authored-by: kobenguyent <7845001+kobenguyent@users.noreply.github.com>

Author: Copilot

lib/element/WebElement.js

@@ -1,4 +1,4 @@
-const assert = require('assert')
+import assert from 'assert'
 
 /**
  * Unified WebElement class that wraps native element instances from different helpers
@@ -324,4 +324,4 @@ class WebElement {
   }
 }
 
-module.exports = WebElement
+export default WebElement

lib/plugin/enhancedRetryFailedStep.js

@@ -1,8 +1,8 @@
-const event = require('../event')
-const recorder = require('../recorder')
-const store = require('../store')
-const output = require('../output')
-const { RETRY_PRIORITIES } = require('../retryCoordinator')
+import event from '../event.js'
+import recorder from '../recorder.js'
+import store from '../store.js'
+import output from '../output.js'
+import { RETRY_PRIORITIES } from '../retryCoordinator.js'
 
 const defaultConfig = {
   retries: 3,
@@ -17,7 +17,7 @@ const defaultConfig = {
  * This plugin provides step-level retries and coordinates with global retry settings
  * to avoid conflicts and provide predictable behavior.
  */
-module.exports = config => {
+export default config => {
   config = Object.assign({}, defaultConfig, config)
   config.ignoredSteps = config.ignoredSteps.concat(config.defaultIgnoredSteps)
   const customWhen = config.when