mockingbird-world

Review and write a Mockingbird mock's world description - how its contract behaves as a world (record identity, where requests and answers hold the record, parents, lifecycles and soft deletes, unique members, concurrency tokens, list scope, filters, order and paging; expressions for computed members, generated ids (set, mint, seq), conditional refusals, side effects on other records and sort parameters). Use after every contract import, or when a mock loses records, cannot read back what it created, or pages, filters or deletes differently from the API's documentation.