uhdm2rtlil

Verify a UHDM-frontend test or fix is correct — runs the full pipeline (frontend workflow → thorough Verilator co-sim → formal equiv_induct → sound SAT-from-reset miter) and interprets the trichotomy verdict (real bug vs artefact vs inconclusive). Use after changing src/frontends/uhdm/ or adding/triaging a test, and whenever asked to "check equivalence", "make sure the cosim passes", or decide whether a divergence is a real frontend bug.