Review follow-ups of PR #416. The check that release.yml runs before
deleting the published manifest moves from an inline jq program to
scripts/check-latest-json.jq, which release.yml applies with
`jq -e --arg version ... -f`. scripts/build-latest-json.test.mjs now runs
that same filter on every pull request: on the script's output, on a
wrong version, on nine broken manifests and on the shape published up to
v0.17.1. It also compares the key lists of the script, of the filter and
of verify-release.sh, so a list left behind shows before the tag.
Two new cases pin the version argument: 0.18.0 must come out as 0.18.0
(the other fixtures pass 0.17.1, the version the bundle names carry, so a
script that ignored its argument passed them all), and an empty version
must fail. Both mutations survived the review's pass.
No change to what the manifest holds: still four keys.
Refs #320
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>