# Wave W3 review

- Verdict: pass
- Scope: calculation persistence, policy version, idempotency, history CRUD, user isolation and account-deletion cleanup.
- Tasks: 5, 6, 7.
- Evidence: `mvn -Dtest=SalaryAuthorizationIntegrationTest,SalaryCalculationEndToEndIntegrationTest,SalaryAccountDeletionIntegrationTest test` -> 6 tests, 0 failures, 0 errors.
- Requirements covered: calculate and save, exact response breakdown, policy conflict, idempotency replay/conflict, pagination, history privacy, physical delete, account deletion purge and STUDENT-only authorization.
- Residual risk: concurrency race behavior still needs full W4 regression and real MySQL validation.
- Review blockers: none.