export interface AdjustInventoryParams { /** String to preserve precision. */ amount: string; /** 'add' (increase), 'subtract' (decrease), or 'set' (recount). */ stockType: 'add' | 'subtract' | 'set'; variantId?: string; productId?: string; } export interface AdjustInventoryResponse { success: boolean; amount: string; stockType: 'add' | 'subtract' | 'set'; newStock: number; timestamp: string; } export type AdjustInventory = (params?: AdjustInventoryParams) => Promise;