A package replaces its database but wants callers to keep matching ErrAccountMissing. Whi…

A package replaces its database but wants callers to keep matching ErrAccountMissing. Which return preserves that contract without exposing sql.ErrNoRows?

1. fmt.Errorf("load account: %w", ErrAccountMissing)
2. fmt.Errorf("load account: %w", sql.ErrNoRows)
3. fmt.Errorf("load account: %v", ErrAccountMissing)
4. errors.New(sql.ErrNoRows.Error())