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/Hasher.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;
+
+/**
+ * @author Dariusz Rumiński <dariusz.ruminski@gmail.com>
+ *
+ * @internal
+ */
+final class Hasher
+{
+    private function __construct()
+    {
+        // cannot create instance of util. class
+    }
+
+    /**
+     * @return non-empty-string
+     */
+    public static function calculate(string $code): string
+    {
+        return \PHP_VERSION_ID >= 8_01_00
+            ? hash('xxh128', $code)
+            : md5($code);
+    }
+}