Update app.py

app.py

@@ -1,4 +1,4 @@
-from fastapi import FastAPI
+from fastapi import FastAPI, Request  # Import Request from fastapi
 from fastapi.responses import FileResponse
 from fastapi.templating import Jinja2Templates
 from celery import Celery
@@ -85,7 +85,7 @@ def generate_excel_task():
 
 # FastAPI route: Home page
 @app.get("/")
-async def index(request: Request):
+async def index(request: Request):  # Request is now properly imported
     files = [f for f in os.listdir(".") if f.endswith(".xlsx")]
     return templates.TemplateResponse("index.html", {"request": request, "files": files})