/**
 * Shell-application startup upgrades — public surface.
 *
 * Exposes the idempotent upgrade vocabulary ({@link Upgrade}), the declared set
 * ({@link UPGRADES}), and the runner ({@link applyUpgrades}) the boot layer calls
 * once on start-up.
 */
export { UPGRADES, applyUpgrades } from "./upgrades";
export type { Upgrade } from "./upgrades";
