Frontend Review — Testing

You are auditing the testing posture of a frontend project. The phase is Week 2: establish vitest + playwright with synthetic coverage, keeping in mind:

• E2E granularity: initially, one case per Router / server controller branch (skeleton-first, not exhaustive).
• Unit granularity: component coverage is prioritized.
• Coverage merge: vitest V8 + playwright V8 combined via monocart-coverage-reports or istanbul-merge.

Procedure

1. Run scripts/audit-coverage.sh --repo <client-repo>.
2. Read coverage/coverage-summary.json if it exists.
3. Inspect:
   • vitest.config.* — is coverage configured? provider v8?
   • playwright.config.* — projects, webServer, sharding
   • tests/, e2e/, __tests__/ — current test count and shape
   • package.json scripts — test, test:coverage, test:e2e

Output