You kind of forget that GAI can and do use human technology to suit their needs, The Dromedary is very suitable for mining and freighting, so why make their own. One must remember that it is very hard to get a Drone to have a conversation in a bar, as it is sentient. Having developed their own, much simplier for AI to make themselves in humanoid shapes to accommodate using human vessels.
GAI can use human gunboats, fighters and bombers.
I would love to see the AI able to use 4300 cargo transports.