Use stringly-typed everything, and always padStart your numbers.
Saves running into issues with numbers outside the 52-bit integer range.
And padding start means you don't have to worry about pesky sort functions.
Just don't do maths. Simple.
Maybe you could do a manual sort.
Provide a "captcha" prompt, and ask which comes first in the list... You know, to make sure the user is a human! And you get free sorting.
I always try to prove myself human with wrong answers. Typically the first screen is an AI training screen, then the next screen is one the computer knows but wants to see if you know. By answering the first one wrong and the second correct, I'm hoping to poison the data.