[Notes] enrichment

Hero: a full head taller than Landen and Maledic, handsome, tank top, upbeat spotter — consistent with published. Drex: notes add the flat stare, zero tolerance for excuses, and being secretly invested in students' survival ("the difference between alumni and casualties"). The Oct 2 "Ch 44" rewrite has Vanderbilt deny Drex's funding request and reallocate his combat-intensity program's resources to leadership and tactical training; Drex leaves the meeting convinced Halvek deliberately turned the faculty against him ("It was because of him... I'll show them all") and vents it on Landen in the Battle Room. The Oct 4 extension of the "Ch 44" draft fight confirms his gravity kit in action: Drex flies through the air (Gravity Step), crushes Landen to his knees with the command "Kneel", and the weightlessness/zero-gravity effects track the Zero Gravity / "zero" gesture — the system calls him a "versatile tank fighter." [Conflict]: the "Landen - Teams" draft scene calls him "Professor Gareth Drex" — published chapters use Garrick Drex; follow published.