CI runners hit Jest's default 5s `beforeAll` timeout on
slideshowPublic.test.js's bootCrmDb call (~5.4s observed vs ~2s local —
runner-to-runner I/O variance, not a regression). Same hook shape on
slideshowAdmin.test.js is one slow runner away from the same failure.
Raise both to 30s so this stops blocking unrelated PRs branched off beta.
Adjacent to #654 — not strictly part of that fix but the only blocker
between #656 and a green CI right now.