European Union countries reached a compromise Monday that breaks a logjam on planned rules over workers’ rights in the gig economy by keeping the most important decisions in the hands of member states.The agreement marks a turning point in the EU’s years-long efforts to set clearer employment rights for millions of delivery couriers and drivers who get work from online platforms, such as those offered by Uber Technologies Inc. and Deliveroo Plc. The issue has pitted businesses and unions against...