They didn't show up till the Grimoire. And I think the 1e Grimoire had "aspected magicians".
Can we talk for a moment about what a JOY the 1e and 2e materials were to read? Like, I think one of the greatest strengths of Shadowrun, despite 1e's ****ty mechanics and 2e's slightly less ****ty mechanics, was that the books were just fun and flavorful to read. Like, the Neon Samurai ranting about ALL LASER WEAPONS. Or The Smiling Bandit having fun in the Shadowtech discussions. Hell, the very fact that Shadowbeat existed as a goddamn sourcebook. That drek was PURE NERPS, and it was FUN to read, even wrapped around the mechanics.