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>

vendor/symfony/polyfill-php81/Php81.php

@@ -0,0 +1,37 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Polyfill\Php81;
+
+/**
+ * @author Nicolas Grekas <p@tchwork.com>
+ *
+ * @internal
+ */
+final class Php81
+{
+    public static function array_is_list(array $array): bool
+    {
+        if ([] === $array || $array === array_values($array)) {
+            return true;
+        }
+
+        $nextKey = -1;
+
+        foreach ($array as $k => $v) {
+            if ($k !== ++$nextKey) {
+                return false;
+            }
+        }
+
+        return true;
+    }
+}