Update app.py

app.py

@@ -630,9 +630,8 @@ async def upload_csv(
     video_path: str = Form(...)
 ):
     try:
-        target_dir = UPLOAD_DIR
         csv_filename = Path(video_path).stem + ".csv"
-        csv_path = target_dir / csv_filename
+        csv_path = UPLOAD_DIR / csv_filename
         
         if not csv_path.exists():
             raise HTTPException(status_code=404, detail="Le fichier CSV n'existe pas.")