gstack ships dependency-bearing manifests (package.json, bun.lock) but has
no pull-request gate that blocks newly introduced known-vulnerable
dependencies. A PR can currently add or bump an npm/Bun dependency with no
CI check against advisories.
Add a Dependency Review workflow using GitHub's official
actions/dependency-review-action, which diffs the dependency graph
(base...head) on each pull request and fails when a change introduces a
dependency with a high or critical advisory. The threshold is documented
inline and easy to tighten to moderate/low.
Matches existing workflow house style (ubicloud-standard-8 runner, version-
tagged actions, minimal contents:read permissions). Validated with
actionlint 1.7.12 (the same linter run by .github/workflows/actionlint.yml):
no issues.
Fixes#1987
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>