The dashboard backend (Express routes, services) lives under src/ and is pure
Node logic, but every test was paying for jsdom env init plus full CSS-import
processing. Split via environmentMatchGlobs so app/** keeps jsdom (React UI)
and src/** runs in node by default. Two src tests opt back into jsdom:
- status-bar.test.ts uses window.matchMedia.
- proxy-routes.test.ts asserts on DOMException constructor.name, which jsdom
reports as "AbortError" but node reports as "DOMException".
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>