Do you not understand how satellites work? They don't send repair people into space.
This has been a solved problem for decades before the AI gold rush assumed they have some new otherworldly knowledge to teach the rest of the world.
Not trying to be rude - but it's you who doesn't understand how satellites work.
The U.S. has 31 GPS satellites in orbit right now. The operational cost of running those is $2 million/day.
Not to mention the scale of these satellites would be on the order of 10x-100x the size of the ISS, which we do send people to perform maintenance.
There were five separate flights to service the Hubble telescope. It was designed from the beginning to be repaired and upgraded.