- Import validateSetupVapid from api/client.ts in SetupPage.tsx
- Add vapid: ValidationRowState to validationRows state (alongside db/oidc)
- Extend configMutation.onSuccess chain: DB → OIDC → VAPID (sequential)
- Add ValidationRow for VAPID with pending/success/failure text
- Gate setBothPassed(true) on all three rows passing (db AND oidc AND vapid)
- Update anyPending and handleSaveAndValidate reset to include vapid state
- All 249 PWA tests pass; TypeScript clean
Closes CR-01; satisfies SETUP-02 "VAPID private key decodes to 32 bytes"
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
