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/league/flysystem/src/UnableToGenerateTemporaryUrl.php

@@ -0,0 +1,26 @@
+<?php
+
+declare(strict_types=1);
+
+namespace League\Flysystem;
+
+use RuntimeException;
+use Throwable;
+
+final class UnableToGenerateTemporaryUrl extends RuntimeException implements FilesystemException
+{
+    public function __construct(string $reason, string $path, ?Throwable $previous = null)
+    {
+        parent::__construct("Unable to generate temporary url for $path: $reason", 0, $previous);
+    }
+
+    public static function dueToError(string $path, Throwable $exception): static
+    {
+        return new static($exception->getMessage(), $path, $exception);
+    }
+
+    public static function noGeneratorConfigured(string $path, string $extraReason = ''): static
+    {
+        return new static('No generator was configured ' . $extraReason, $path);
+    }
+}