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/friendsofphp/php-cs-fixer/src/PharChecker.php

@@ -0,0 +1,38 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of PHP CS Fixer.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *     Dariusz Rumiński <dariusz.ruminski@gmail.com>
+ *
+ * This source file is subject to the MIT license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+namespace PhpCsFixer;
+
+/**
+ * @internal
+ */
+final class PharChecker implements PharCheckerInterface
+{
+    public function checkFileValidity(string $filename): ?string
+    {
+        try {
+            $phar = new \Phar($filename);
+            // free the variable to unlock the file
+            unset($phar);
+        } catch (\Exception $e) {
+            if (!$e instanceof \UnexpectedValueException && !$e instanceof \PharException) {
+                throw $e;
+            }
+
+            return 'Failed to create Phar instance. '.$e->getMessage();
+        }
+
+        return null;
+    }
+}