BRUSSELS — Policymakers, consumer groups and airline lobbies have been wrangling over what protections to give passengers for over a decade. That fight could end this week. At the heart of the dispute is whether passengers should continue receiving compensation ranging from €250 to €600 for flights delayed by at least three hours, alongside a series of new rights for travelers and obligations for airlines. The current rules are seen by many as flawed: Passengers often don’t get the money they