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/sebastian/comparator/src/Comparator.php

@@ -0,0 +1,32 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of sebastian/comparator.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\Comparator;
+
+abstract class Comparator
+{
+    private Factory $factory;
+
+    public function setFactory(Factory $factory): void
+    {
+        $this->factory = $factory;
+    }
+
+    abstract public function accepts(mixed $expected, mixed $actual): bool;
+
+    /**
+     * @throws ComparisonFailure
+     */
+    abstract public function assertEquals(mixed $expected, mixed $actual, float $delta = 0.0, bool $canonicalize = false, bool $ignoreCase = false): void;
+
+    protected function factory(): Factory
+    {
+        return $this->factory;
+    }
+}