Update app.py

app.py

@@ -1,4 +1,3 @@
-import os
 import shutil
 from fastapi.responses import FileResponse
 import asyncio
@@ -8,6 +7,7 @@ from pydantic import BaseModel
 from utils import STT, TTS
 from data_ingestion import Ingest_Data 
 from RAG import app as rag_app, Ragbot_State, reload_vector_store
+import os
 
 # Initialize FastAPI
 app = FastAPI(title="LangGraph RAG Chatbot", version="1.0")