Test app now uses vite and vitest

Editor assessment

The subject honestly reports an infrastructure migration — the Vue test app now runs on vite and vitest — and test(vue) is a reasonable classification since only test tooling changed; build would also be arguable if the app ships to consumers. Lowercase start, near-imperative phrasing, and a comfortable length make the header easy to scan. The body is missing, though: a line on why the migration happened, or what vitest replaces, would preserve context that this issue-free message otherwise lacks. A competent entry with room for one more sentence.