CHANGELOG: add the Wilson B, decay-CV and space-group b-veto entries; shorten
the verbose modulation / stills-modulation / trimmed-background entries and
remove the dataset identities from them.
CPU_DATA_ANALYSIS: the correction surfaces are now three (add modulation),
on by default, cross-validated on the sigma-independent metric; the background
trimmed mean applies to monochromatic stills as well as rotation (broadband
keeps the sigma-clip); document the dataset-wide Wilson B, the still-partiality
model, and the twin b-veto in the space-group search.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>