By Felix Accra, Ghana — The siren fades into the distance. A young officer steps out of his patrol car, wipes the sweat from his brow, and greets the street vendor by name. It’s not a chase today. It’s community patrol. Sergeant Kwaku Amoako, 36, has worn the uniform for 14 years — and he says most people still don’t know what his job really involves. “They think we’re just here to harass,” he says quietly. “But we’re human too. We have families. We feel fear. We make tough calls.” The Thin Blue Line: Misunderstood and Overlooked Ghana’s police officers are among the most visible figures in public life —…