nx_ferment_kinetics_test.nx

nx_ferment_kinetics_test.nx -- smoke for nx_ferment_kinetics (R3). Proves the predictive science, MEASURED not asserted: - temperature factor is monotone in T (1-4) - the ferment sets within the horizon (5-6) - WARMER SETS FASTER: set(43) < set(30) < set(20) (7-8) -- the Q10 claim - science -> safety link: 43 C acidifies inside the 48 h window (9) while 15 C does NOT (10), and R0 agrees on both batches (11-12) Exit code = failed assertion number; 0 = all pass.