Reconcile docs/CPU_DATA_ANALYSIS.md and docs/RUGNUX.md with the current
image_analysis/ and rugnux CLI (verified section-by-section against the code):
unified profile-fit Bragg integration engine, multi-lattice indexing,
azimuthal phi binning, radial parallax/bandwidth profile with sub-pixel
centring, rot3d capture-fraction handling, automatic CC1/2 resolution cutoff,
and the new rugnux options; fix the section numbering and cross-references;
remove the never-implemented French-Wilson and still-partiality descriptions.
Delete the stale in-source design notes (ICE_RING_DETECTION,
BRAGG_INTEGRATION_ENGINE, NEXTGEN_INTEGRATOR) and fix the two code comments
that pointed at them; the BraggIntegrationEngine header no longer claims it is
'not yet wired'.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>