fix options passing

app.py

@@ -207,7 +207,7 @@ if prompt := st.chat_input("Type here"):
         options["model_name"] = "gpt-4o-2024-05-13"
 
     
-    llm_client = LLMReasoner(api_key)
+    llm_client = LLMReasoner(options)
 
 
     retrieved_documents = retriever(prompt)