Report claims attack on cargo ship CHELSEA-7 east of Varna, mentions Geran drone strikes on ships

A Russian milblog post discusses an alleged attack on the cargo ship CHELSEA-7 east of Varna in the Black Sea and frames it as part of pressure on Ukrainian logistics. It also references prior Russian strikes on ships using “Geran” drones with small warheads, but provides no verified details on weapon used in the CHELSEA-7 incident.