Fix deep seek unauthorized error

Author: Vijay Tupakula

app/Integrations/OpenAI/OpenAIConnector.php

@@ -38,7 +38,7 @@ public function resolveBaseUrl(): string
     protected function defaultHeaders(): array
     {
         return [
-            'Authorization' => 'Bearer '.config('aiproviders.openai.api_key'),
+            'Authorization' => 'Bearer '.config("aiproviders.{$this->service}.api_key"),
         ];
     }
 }