Blood money, one price, one shop

Blood money is the PvP currency, and every item priced in it has exactly one home and exactly one price. Nine shops sit on a single thirty-three rung ladder, cut where a player's question changes: what they can afford below 500, what they want next above 1,000.

The price lives in items.json as bloodMoneyValue, and the shop generator is its only writer. Where the two disagree, the build fails rather than the world charging two prices.