scorched my door with a torch, any way to fix?

Dont ya hate that. I got to end of some interior trim work and removed a piece of tape and removed the cheap woodgrain veneer off the slide trim. Smack dab in your face area.

Some type of trim as you mentioned. Something durable like thin stainless. Like a surround trim cut to fit around the handle/lock assembly.

Or tape evenly around it and paint it black or maybe a color that is elsewhere on the rig.