Changes in version 0.1.2 (2026-06-09)                  

  - Initial CRAN release.
  - estimate_qtbi() encodes multi-exposure panels into a fixed Quantum
    Toxic Burden Index using within-cohort percentiles and a
    configurable synergy parameter.
  - Optional potency-weighted readout via reference_doses, with
    automatic derivation and rescaling of weights through
    potency_weights_from_reference_doses() and
    normalize_potency_weights().
  - diagnose_qtbi() provides synergy sensitivity and monotonicity
    diagnostics.
  - Classical statevector simulation only; no quantum hardware or heavy
    visualization dependencies.