nx_meal_effort_gate.nx

nx_meal_effort_gate.nx -- proves the opportunity-cost engine on per-run /tmp fixtures. The cell that matters is T6: the SAME dish, the SAME prices, the SAME alternatives -- and the recommendation FLIPS from "buy it pre-prepped" to "cook it" purely because the cook got better with a knife. If that cell ever goes vacuous, skill has stopped being a term in the arithmetic and the coach is decoration. license_tier: ORIGINAL No hw writes (Rule 26).