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/doctrine/dbal/src/Cache/CacheException.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace Doctrine\DBAL\Cache;
+
+use Doctrine\DBAL\Exception;
+
+class CacheException extends Exception
+{
+    /** @return CacheException */
+    public static function noCacheKey()
+    {
+        return new self('No cache key was set.');
+    }
+
+    /** @return CacheException */
+    public static function noResultDriverConfigured()
+    {
+        return new self('Trying to cache a query but no result driver is configured.');
+    }
+}