Dashboard Core — Mitigation (Composer's ZNE panel)
Real Zero-Noise Extrapolation (ZNE) error mitigation, wired to the same
engine and real noise channels (dense_evolution.registry.NoiseModel)
the rest of Composer uses — a thin dashboard-facing layer over
dense_evolution.mitigation, not a separate
reimplementation.
::: dashboard_core.mitigation
Not to be confused with dense_evolution.mitigation
(same name, different module) — that one is the actual ZNE
implementation (richardson_extrapolate, zne_density_matrix,
jsd_predictive_zne_density_matrix, ...); this one is the dashboard's
request/response wrapper around it.