Added named data-based null calibration using the cellMCD plug-in scatter, fixed null mean, matching complete-case handling, and recorded fit settings; retained the explicit-covariance positional API.
Added Sigma-aware Monte Carlo calibration for the one-sample cellMCD test, with identity-model warnings, covariance validation, and explicit safeguards for finite-variance F moment matching.
AWRcca() so that score-space observation weights enter a second
shrinkage-regularized canonical correlation fit. The final estimator no
longer falls back to unregularized classical CCA merely because p + q > n.cor, shrink_used, weights, u1, and v1
components for backward compatibility.