Merge pull request #394 from giagara/2.x

Fix response stream for OpenAI when failed

Author: ilvalerione

src/Providers/OpenAI/Responses/HandleResponsesStream.php

@@ -99,7 +99,7 @@ public function stream(array|string $messages, callable $executeToolsCallback):
                     break;
 
                 case 'response.failed':
-                    throw new ProviderException('OpenAI streaming error: ' . $event['error']['message']);
+                    throw new ProviderException('OpenAI streaming error: ' . $event['response']['error']['message']);
 
                 default:
                     // Ignore other events like response.start, metadata, etc.