docs: improve JSDoc across 10 files

[lpatiny]

• Add missing JSDoc to zeroShift, matrixAutoCorrelation, matrixBoxPlot
• Document sorted-rows invariant on matrixBoxPlot
• Add interface property docs to MatrixBoxPlot
• Trim verbose xyEquallySpaced prose; fix stub from/to/variant descriptions
• Fix xGetFromToIndex descriptions that wrongly cited xyIntegration; add @default for from/to
• Fix truncated centerX description in xHistogram; add @default for logBaseX/logBaseY/absolute
• Add algorithm property JSDoc and fix stray character in xPadding
• Add zones property JSDoc to XYExtractOptions
• Fix mangled magnitudeMode description in reimAutoPhaseCorrection; add @returns
• Fix copy-pasted wrong descriptions on nbRows/nbColumns in matrixCreateEmpty

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 97.15%. Comparing base (fdd4414) to head (291e407).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #373   +/-   ##
=======================================
  Coverage   97.15%   97.15%           
=======================================
  Files         206      206           
  Lines        4116     4116           
  Branches     1031     1031           
=======================================
  Hits         3999     3999           
  Misses        113      113           
  Partials        4        4           

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