Tariqul Islam lost his savings after setbacks in his clothing business about a year and a half ago and turned to ride-sharing on his motorbike to make ends meet. Until recently, he spent hours in fuel lines as supply disruptions linked to the war in Iran ripple into Bangladesh. The 53-year-old father of four fears the strain will worsen if the war drags on, saying long hours waiting for fuel have sharply cut his income and made it increasingly difficult to support his family in Dhaka , the nation's capital, including a daughter at university and a son in college. “My family was managing fairly well through ride-sharing," he said. “But after the fuel shortage began, I would buy fuel one day and run the bike for two days.…