Lets say I do vibetronics - Who can I then send the schematics to, to have troubleshooting completed? Is there a service that is like "okay we'll take your high voltage nightmare and double check that it won't make magic smoke"?
Depending on what you’re doing, there are circuit simulators that can verify your work. You can have the LLM drive the simulation but of course then you have to trust that it’s setting up and interpreting the simulation correctly.
Any company doing consultancy in electronics. You're going to have to pay for the time an electronics engineer spend on understanding what you want to do and reviewing your design, plus the consultancy's margin.
There are a ton of cheap Chinese PCB fabs that will build it for you. Testing, of course, is still your own problem. I suspect you're going to have a hard time finding someone to take legal risks for you.