She was introduced around 2015-16, shoehorned in the back of Invincible Iron Man for a few pages. It was done sloppily. Eve Ewing wrote her debut series, which was actually quite fun. I wouldn't say Miles version of Iron Man, I'd say a Patriot version of Iron Man. Miles was initially Ultimate Peter 2.0, before they started incorporating his family culture into his personality. Even then, he's still just cooler 1610 Peter. Riri is inspired by Iron Man, but she's her own thing.I'll be honest i haven't followed the comics much since i was a kid. i have no recollection of this character, i assume she was introduced in the 2010s.
Seems like the mile morales version of iron man. Always had a preference for original black character. not spiderman, but black! Ironman but black! Cap but Black! etc etc. but i will check this out.