Update fmt.Println message from 'Hello' to 'Goodbye'

Author: Twiddllo

backend/app.py

@@ -407,7 +407,7 @@ async def get_current_user(token: str = Depends(oauth2_scheme)):
     if user_id is None: raise HTTPException(status_code=status.HTTP_401_UNAUTHORIZED, detail="Invalid token payload")
     return {"id": int(user_id), "role": payload.get("role", "viewer")}
 
-def require_role(allowed_roles: list[str]):
+def require_role(allowed_roles: List[str]):
     async def role_checker(current_user: dict = Depends(get_current_user)):
         if current_user.get("role") not in allowed_roles: raise HTTPException(status_code=403, detail="Insufficient permissions")
         return current_user