I agree, putting the nuts in the bowl is such an amazing idea. I'd never thought of that before!

Maybe if you do this slowly and put her food basically where it used to be and then each night move it 6 inches closer to the trap and then slowly inside until it's at the back of the trap she might begin to enter the trap. Kind of like when you change a litter box location, you do it a few feet at a time. She might be too freaked out to just all of a sudden go in the trap. Just a thought.

Looking forward to a happy ending!