Mirrors apps/portal's Vitest setup so the SPA can take frontend
unit + component tests. Required prerequisite for WS-6 sessie 3b's
admin UI work — apps/portal had 113+ tests, apps/app had zero, and
launching WS-6's organizer UI uncovered while the portal SPA is
well-tested would be asymmetric quality.
Setup:
- vitest, happy-dom, @vue/test-utils, @testing-library/vue installed
- vitest.config.ts mirrors portal config: trimmed auto-imports
(no pinia/vue-router/vue-i18n/@vueuse/math) so tests run fast
in happy-dom without loading the full Vuexy bundle
- AutoImport's dts:false prevents the trimmed test-only set from
clobbering the dev-server's full auto-imports.d.ts (apps/app's
auto-import surface is bigger than the portal's)
- tests/setup.ts mocks vue-router by default; tests that exercise
the real router can override per-suite
- Sample sanity test confirms the harness works end-to-end
Adds `pnpm test` and `pnpm test:watch` scripts to package.json.
Refs: BACKLOG TECH-APP-VITEST, WS-6 sessie 3b prerequisite
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>