Hopefully catproof magnetic (or not) lock for IKEA LIXHULT

One of our cat is a bully. So I made a dedicated, microchip-protected litterbox for a bullied cat. Bully-cat is also a smart one, so I'm trying to design a cat-proof lock for a side door. Let's see if this one works. Just slide it over the handles and rotate 90 degrees.

It works without magnets, but those add extra challenge for a cat. 12 pcs. of 8x3 mm cylindrical magnets are being used. I recommend N52 strength for best grip.