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/babel-preset-current-node-syntax/README.md

@@ -0,0 +1,30 @@
+# `babel-preset-current-node-syntax`
+
+> A Babel preset that enables parsing of proposals supported by the current Node.js version.
+
+## Installation
+
+If you are using yarn:
+```
+yarn add --dev babel-preset-current-node-syntax
+```
+
+If you are using npm:
+```
+npm install --save-dev babel-preset-current-node-syntax
+```
+
+## Contributing
+
+PRs are welcome! The codebase is so small that I didn't setup a linter, but try
+to match the style of the existing code.
+
+You can run tests with the following command:
+```
+yarn node test/index.js
+```
+
+The `test/fixtures.json` file contains a bunch of syntax tests, alongside with
+the minimum supported node version for each of them. Babel should throw on
+older versions, without support for that given syntax.
+All the tests are run using `@babel/parser@7.0.0`.