no bruh i need to find a light kit on amazon or something that I can wire to my caliper and battery to use as a taillight and brake light.
Um No.
If I head to guess based on zero concrete knowledge or information the light switch on the caliper breaks ground continuity to the light ground wire... it would be to tricky and costly to make an isolated switch to interrupt the positive polarity due to the heat and hostile environmentthat is a brake caliper.
In situations as such you wire the light as constantly hot (positive batery terminal) or on a main switch of some form that is, and let the ground turn it on and off when signaled.
You need make your own stuff because no such direct fit stuff exists for a minibike. Figuring out how to mount motorcycle light parts is the way to go whether you use incandescent or led, and whether you use bolt on clamp brackets or welded on tabs.
Do You really think my rig had ANY ready made lighting parts?

No everything is indiviually sourced, adapted to fit, and wired to play nice with each other. I have even preemptively set up to tie in a licence plate light should the L.E.O.'s decide to not blind eye me one day.