Convert it to drawers and have the top drawer front just be false.

This is an extremely tough problem. Even if you managed to remove the factory DW handle and install something you had custom machined, there's really not the tiniest place on the DW front where a projection does not cause an interference that disables your corner cabinet as currently configured. So, something else has to give somewhere....cabinet to be reconfigured, or really, rebuilt 3-6" narrower, with a filler for handle clearance, or DW moved. None of it will be cheap or pretty.

If you had a CKBD do this, IMO they are liable for a fix at no cost to you. Sorry you're facing this, it's an easy mistake for an inexperienced person to make.

Cut a small square corner off your cabinet, and glue it to the face of the cabinet (like a false front,) so when you open the door, it clears the handle but when it's closed, it looks like one piece. You'd need your cabinet person to do it, so it looks good. Looks like it would be about 5 inches long and go to the trim molding line.

If you haven't used it yet, I'd return the dishwasher and get one with an integral handle (that is, the place for your fingers is carved out of the face rather than sticking out). You need to be able to get that pull-out out or you lose the whole blind corner.

Kitchen designer should have allowed a spacer or other cabinet in between -- this is pretty foreseeable. But I think the change of appliance should save you. (Or at least, the bumping will only go one way.)

oh... working from Linda's suggestion.... have the full height cabinet door replaced with a false top drawer and a regular height cabinet door. put the lazy susan to the bottom. you'll lose the top access but the door would look really perfect.

its a permanent solution, you'll always be able to get whatever dishwasher you want.

but make sure the dishwasher clears the cabinet pulls when it opens. you might need to limit yourself to an indentation to open the cabinet door.