nx_ux_study_gate.nx

nx_ux_study_gate.nx -- PROOF (re-runnable, adversary-controlled) that the NN/g usability scoring in nx_ux_study is HONEST and cannot be gamed into a fake win, PLUS it runs the first REAL study: the Nishi browser dogfood of https://nishifamily.com/experiential, graded from the actual scroll recording (nishi_browser_f0..7.ppm) captured this session. The neg-controls are the load-bearing part: if someone "fixes" the grader to reward feature-presence, T-STICKER and T-CATAS go green-when-they-should-be-red and this gate turns RED. license_tier: ORIGINAL expect_exit: 0