nx_js_fuel_gate.nx

nx_js_fuel_gate.nx -- non-vacuous tooth for the GLOBAL JS execution budget (debt 1785032369). Proves BOTH directions: (T1) a hostile unbounded loop -- the exact class that degraded the crawler to minutes-per-page and that per-loop caps cannot bound compositionally -- ABORTS with an eval error instead of hanging; (T2) a legitimate script still runs to completion under the same budget (the guard must not overreach); (T3) budget RESETS between programs (a spent budget must not poison the next run). Rides nx_gate_verdict (D001). license_tier: ORIGINAL expect_exit: 0