How to add my game to steam library?

I did like this post but like below, a Purchase button is the only thing in my library.
game; slay the spire 2

I used SACGUI to crack.

1. How to solve this problem?

2. There's any way to add game to steam library with license? or should I use only cracked version to play?

https://preview.redd.it/lc8kyqrrkdgh1.png?width=765&format=png&auto=webp&s=073f0fb3dcfd1804a5ea746e92d3b271da51d152