export interface SessionItem {
    /** pk: {userId}#{tenantCode} */
    pk: string;
    /** sk: {moduleTableName}#{itemId} — module `tableName` from CommandModule */
    sk: string;
    /** Version of the command — used to fetch exact command record */
    version: number;
    /** Unix timestamp TTL — auto-expired by DynamoDB */
    ttl: number;
}