fix several 4.x issues

Author: kobenguyent

lib/container.js

@@ -34,6 +34,7 @@ let container = {
   /** @type {Result | null} */
   result: null,
   sharedKeys: new Set(), // Track keys shared via share() function
+  tsFileMapping: null, // TypeScript file mapping for error stack fixing
 }
 
 /**
@@ -176,6 +177,15 @@ class Container {
     return container.translation
   }
 
+  /**
+   * Get TypeScript file mapping for error stack fixing
+   *
+   * @api
+   */
+  static tsFileMapping() {
+    return container.tsFileMapping
+  }
+
   /**
    * Get Mocha instance
    *
@@ -415,6 +425,8 @@ async function requireHelperFromModule(helperName, config, HelperClass) {
         importPath = tempFile
         tempJsFile = allTempFiles
         fileMapping = mapping
+        // Store file mapping in container for runtime error fixing
+        container.tsFileMapping = mapping
       } catch (tsError) {
         throw new Error(`Failed to load TypeScript helper ${importPath}: ${tsError.message}. Make sure 'typescript' package is installed.`)
       }
@@ -757,6 +769,8 @@ async function loadSupportObject(modulePath, supportObjectName) {
           // Store temp files list in a way that cleanup can access them
           tempJsFile = allTempFiles
           fileMapping = mapping
+          // Store file mapping in container for runtime error fixing
+          container.tsFileMapping = mapping
         } catch (tsError) {
           throw new Error(`Failed to load TypeScript file ${importPath}: ${tsError.message}. Make sure 'typescript' package is installed.`)
         }

lib/step/record.js

@@ -5,6 +5,8 @@ import output from '../output.js'
 import store from '../store.js'
 import { TIMEOUT_ORDER } from '../timeout.js'
 import retryStep from './retry.js'
+import { fixErrorStack } from '../utils/typescript.js'
+import Container from '../container.js'
 function recordStep(step, args) {
   step.status = 'queued'
 
@@ -60,6 +62,13 @@ function recordStep(step, args) {
   recorder.catch(err => {
     step.status = 'failed'
     step.endTime = +Date.now()
+    
+    // Fix error stack to point to original .ts files
+    const fileMapping = Container.tsFileMapping()
+    if (fileMapping) {
+      fixErrorStack(err, fileMapping)
+    }
+    
     event.emit(event.step.failed, step, err)
     event.emit(event.step.finished, step)
     throw err