Rider should still be paid the delivery fee on unsuccessful delivery

Reported by client (WhatsApp) — business requirement

Even when an order is unsuccessful, the rider should still receive the delivery fee, and it should update in the income/dashboard.

Client request (verbatim): "Delivery unsuccessful hole-o rider should get delivery fee."

Scope: likely needs both API/business-logic change (credit the fee on unsuccessful delivery) and UI update (reflect it in income — see related real-time income issue). May touch dinebd__api.rider.