Tim Duesterhus 2c748125f5 MINOR: check: Support generating a unique_id for checks
This implementation is directly modeled after `stream_generate_unique_id()` and
the corresponding `unique_id` field on `struct stream`.

It will be used in a future commit to enable the use of the `%[unique-id]`
fetch in check rules.
2026-04-13 20:01:42 +02:00
..