The CI workflow had a `frontend` job that tried to run npm ci/build/test in a `frontend/` directory which does not exist in this repo. The actual UI lives in `ui/` as static HTML/CSS/JS (no Node.js toolchain). This caused every CI run to fail on an otherwise valid codebase. Co-authored-by: Claude Agent <claude-agent@anthropic.com> Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>