docs: add MES upload status tracking design spec

wanshenmean

昨天 406a7dd7ed6d1215b739a80453e2bbde0f8af643

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// Please see documentation at https://docs.microsoft.com/aspnet/core/client-side/bundling-and-minification
// for details on configuring this project to bundle and minify static web assets.
 
// Write your JavaScript code.