PABX-only variant of the generic e2e-test-validator, kept for the PABX monorepo as it was. Audits PABX end-to-end tests (tests/e2e/) against the pabx-e2e-test-writer rules, producing a compliance report with a PASS/FAIL/PASS WITH WARNINGS verdict, per-violation severity, and fix suggestions. Read-only — never writes, fixes or runs tests. Dispatched by the evaluator or qa-preflight to confirm that an e2e test a writer corrected or newly wrote (a missing-coverage test, a guard) conforms before they trust it, or run directly by a user.
