https://jevlint.dev/ 2026-09-27 https://jevlint.dev/media/jev-lint-demo-poster.webp jev-lint in 40 seconds An agent writes a useEffect fetch, the hook flags a race in 0.3 s, and the agent fixes it before review. https://jevlint.dev/media/jev-lint-demo.mp4 41