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

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

vendor/phpunit/php-invoker/README.md

@@ -0,0 +1,20 @@
+# phpunit/php-invoker
+
+[![Latest Stable Version](https://poser.pugx.org/phpunit/php-invoker/v/stable.png)](https://packagist.org/packages/phpunit/php-invoker)
+[![CI Status](https://github.com/sebastianbergmann/php-invoker/workflows/CI/badge.svg)](https://github.com/sebastianbergmann/php-invoker/actions)
+[![Type Coverage](https://shepherd.dev/github/sebastianbergmann/php-invoker/coverage.svg)](https://shepherd.dev/github/sebastianbergmann/php-invoker)
+[![codecov](https://codecov.io/gh/sebastianbergmann/php-invoker/branch/main/graph/badge.svg)](https://codecov.io/gh/sebastianbergmann/php-invoker)
+
+## Installation
+
+You can add this library as a local, per-project dependency to your project using [Composer](https://getcomposer.org/):
+
+```
+composer require phpunit/php-invoker
+```
+
+If you only need this library during development, for instance to run your project's test suite, then you should add it as a development-time dependency:
+
+```
+composer require --dev phpunit/php-invoker
+```