nx_ferment_flavor_test.nx

nx_ferment_flavor_test.nx -- smoke for nx_ferment_flavor (CAPSTONE). Proves the two-ladder convergence: predict a ferment's flavor trajectory from chemistry, and design a ferment for a target flavor. - sour rises with fermentation and is bounded (T0 saturation) (1-3) - umami rises with time + proteolysis (4) - aged ferment is more flavour-intense than young (R3+T0+T2 vector) (5) - DESIGN: find the hour that hits a target sourness, verify it (6-7) - DESIGN refuses a target the chemistry can never reach (8) Exit code = failed assertion number; 0 = all pass.