Instant cafe menu

A cafe owner moves ingredients from a personal warehouse into the kitchen stock, chooses a learned recipe, and sets its price in Cafe kitchen → Instant menu. This menu does not require advance cooking: when a visitor selects Buy and consume, ingredients are consumed immediately, Silver is paid to the owner minus tax, and satiety, HP, energy, and the meal effect apply at once.

If any ingredient runs out, the item is hidden from buyers until the kitchen stock is refilled. Previously started legacy batches remain compatible and sell under the old flow.

### Owner discount
An owner may buy meals in their own cafe. The price is automatically 20% lower and is marked as an owner discount in the menu. Ingredients are still consumed from kitchen stock and tax is calculated from the discounted amount.