Driver app: route list + proof-of-delivery photos

Nightowl Couriers (Berlin, 40 drivers, B2B contracts) needs a driver app: today's stops in order, barcode scan on pickup, proof-of-delivery photo + signature, offline-first because parking garages exist. Dispatch side is a simple web board showing driver progress. Must work on cheap Android phones. German drivers — UI copy can stay English, I'll translate.