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/ConnectionException.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace Doctrine\DBAL;
+
+class ConnectionException extends Exception
+{
+    /** @return ConnectionException */
+    public static function commitFailedRollbackOnly()
+    {
+        return new self('Transaction commit failed because the transaction has been marked for rollback only.');
+    }
+
+    /** @return ConnectionException */
+    public static function noActiveTransaction()
+    {
+        return new self('There is no active transaction.');
+    }
+
+    /** @return ConnectionException */
+    public static function savepointsNotSupported()
+    {
+        return new self('Savepoints are not supported by this driver.');
+    }
+
+    /** @return ConnectionException */
+    public static function mayNotAlterNestedTransactionWithSavepointsInTransaction()
+    {
+        return new self('May not alter the nested transaction with savepoints behavior while a transaction is open.');
+    }
+}