fix

internal/server/server.go

@@ -167,7 +167,7 @@ func Group(c *gin.Context) {
 		continents = append(continents, continent)
 	}
 	sort.SliceStable(continents, func(i, j int) bool {
-		return continents[i] > continents[j]
+		return continents[i] <= continents[j]
 	})
 
 	groupDtos := make([]*dto.Group, 0)