Update main.py

main.py

@@ -798,14 +798,9 @@ async def summarize_document(request: Request, file: UploadFile = File(...)):
         logger.error(f"Summarization failed: {str(e)}", exc_info=True)
         raise HTTPException(500, "Document summarization failed")
         
-from typing import Optional
-import re
-from fastapi import HTTPException
-from concurrent.futures import ThreadPoolExecutor
 
-executor = ThreadPoolExecutor(max_workers=4)
 
- @app.post("/qa")
+@app.post("/qa")
 @limiter.limit("5/minute")
 async def question_answering(
     request: Request,