Fix bin/publish: copy docs.dist from project root

Fix bin/publish: use correct .env path for rspade_system
Fix bin/publish script: prevent grep exit code 1 from terminating script

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Co-Authored-By: Claude <noreply@anthropic.com>

node_modules/laravel-mix/readme.md

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+<p align="center"><img src="https://laravel.com/assets/img/components/logo-mix.svg" alt="Laravel Mix"></p>
+
+<p align="center">
+<a href="https://www.npmjs.com/package/laravel-mix"><img src="https://img.shields.io/node/v/laravel-mix.svg" alt="Node"></a>
+<a href="https://www.npmjs.com/package/laravel-mix"><img src="https://img.shields.io/npm/v/laravel-mix.svg" alt="NPM"></a>
+<a href="https://npmcharts.com/compare/laravel-mix?minimal=true"><img src="https://img.shields.io/npm/dt/laravel-mix.svg" alt="NPM"></a>
+<a href="https://www.npmjs.com/package/laravel-mix"><img src="https://img.shields.io/npm/l/laravel-mix.svg" alt="NPM"></a>
+</p>
+
+## Introduction
+
+![Laravel Mix thumbnail](https://repository-images.githubusercontent.com/76991633/43a4fe80-025e-11eb-8b88-bf742e4412a7)
+
+
+Laravel Mix provides a clean, fluent API for defining basic [webpack](http://github.com/webpack/webpack) build steps for your applications. Mix supports several common CSS and JavaScript pre-processors.
+
+If you've ever been confused about how to get started with module bundling and asset compilation, you will love Laravel Mix!
+
+## Documentation
+
+You may review the initial documentation [here](docs/).
+
+## License
+
+Laravel Mix is open-sourced software licensed under the [MIT license](http://opensource.org/licenses/MIT).