chore(*): add comments

src/utils/asyncForEach.ts

@@ -1,3 +1,6 @@
+/**
+ * Executes an async callback for each item in the given array.
+ */
 export async function asyncForEach(
   array: any[],
   callback: (item: any, index: number, originalArray: any[]) => any

src/utils/listSasFiles.ts

@@ -1,5 +1,9 @@
 import { listFilesInFolder } from '@sasjs/utils/file'
 
+/**
+ * Fetches a list of .sas files in the given path.
+ * @returns {Promise<string[]>} resolves with an array of file names.
+ */
 export const listSasFiles = async (folderPath: string): Promise<string[]> => {
   const files = await listFilesInFolder(folderPath)
   return files.filter((f) => f.endsWith('.sas'))