fix: oops we still need that

src/backend/src/modules/puterai/OpenAICompletionService.js

@@ -354,6 +354,8 @@ class OpenAICompletionService extends BaseService {
             }
         }
 
+        const max_tokens = 4096 - token_count;
+
         const completion = await this.openai.chat.completions.create({
             user: user_private_uid,
             messages: messages,