test(web): add v8 coverage with truthful baseline floor#26
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Adds @vitest/coverage-v8 (catalog-pinned), a test:coverage script wired through turbo (inputs + coverage/** output), and coverage thresholds set to a floor measured on main (lines 18 / funcs 10 / branches 10 / stmts 17 against current 19.3/11.4/11.7/18.9). Ratchet upward as tests grow. Adapts the coverage config from @BenSheridanEdwards's fork; the multi-job CI fan-out from that branch was intentionally left out. Co-authored-by: Ben Sheridan-Edwards <BenSheridanEdwards@users.noreply.github.com>
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Adds code-coverage measurement with an honest, ratchetable floor:
@vitest/coverage-v8(catalog-pinned at the vitest^4line).test:coveragescript, wired throughturbowithinputs+coverage/**output so it shares the cache.coverage/gitignored.The multi-job CI fan-out from the source branch was deliberately not included (it re-runs setup per job, which is cache-hostile).
Credit
Coverage config adapted from @BenSheridanEdwards's fork (
chore/ci-hardening). Thanks Ben!Verification
make checkgreen;turbo run test:coveragepasses the threshold gate.