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/mime/Test/Constraint/EmailTextBodyContains.php

@@ -0,0 +1,51 @@
+<?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\Component\Mime\Test\Constraint;
+
+use PHPUnit\Framework\Constraint\Constraint;
+use Symfony\Component\Mime\Message;
+use Symfony\Component\Mime\RawMessage;
+
+final class EmailTextBodyContains extends Constraint
+{
+    private string $expectedText;
+
+    public function __construct(string $expectedText)
+    {
+        $this->expectedText = $expectedText;
+    }
+
+    public function toString(): string
+    {
+        return \sprintf('contains "%s"', $this->expectedText);
+    }
+
+    /**
+     * @param RawMessage $message
+     */
+    protected function matches($message): bool
+    {
+        if (RawMessage::class === $message::class || Message::class === $message::class) {
+            throw new \LogicException('Unable to test a message text body on a RawMessage or Message instance.');
+        }
+
+        return str_contains($message->getTextBody(), $this->expectedText);
+    }
+
+    /**
+     * @param RawMessage $message
+     */
+    protected function failureDescription($message): string
+    {
+        return 'the Email text body '.$this->toString();
+    }
+}