Test files were typechecked by nothing: tsconfig.build.json excludes
them (correctly — they must not land in dist), and vitest transforms
with esbuild, which strips types without checking them. That gap is
where the review's two tsc breaks and the fixture drift accumulated.
Adds 'typecheck' scripts per package (dev tsconfigs, which include
src/**/*.test.ts; renderer reuses its existing tsc -b), a root
orchestrator mirroring the test script, and a CI step in the vitest
job. All three packages are currently clean.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
apps/x gains npm test — builds @x/shared first (the core and renderer
suites import its dist), then runs the shared, core, and renderer
vitest suites in dependency order; per-suite test:shared/test:core/
test:renderer scripts for targeted runs.
.github/workflows/x-tests.yml runs that harness on every pull request
touching apps/x (plus pushes to main and manual dispatch): pnpm 10 /
Node 22, frozen lockfile, pnpm store cached against apps/x's lockfile.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
