Building a Free Solidcore Class Monitor

I have a 10-class-a-month membership at solidcore and like to take the 7am classes on Mondays and Wednesdays at FiDi. The problem: classes are released on the 24th and fill up almost instantly. Each class has ~16 spots plus ~16 waitlist spots, and once the waitlist is full, the class shows "Class Full" with no way to get notified if a spot opens up.

I'd already set up an iPhone Shortcut to auto-reply when I get the "spot available" text in the 10-hour window before class, but that only works once I'm already on the waitlist. What I really wanted was to know the moment someone drops off a waitlist, moving a class from "full" to "joinable."