chore(main): release 6.13.0

[mljs-bot]

🤖 I have created a release beep boop

6.13.0 (2026-06-23)

Features

• add Matrix.gram() for the symmetric XᵀX product (#208) (436258b)
• add Matrix.mmulByTranspose() (#207) (9b3835a)

Performance Improvements

• speed up SVD (~4.7x) and symmetric EVD (~1.7x) via transposed internal storage (#167) (22548f2)

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 69.15%. Comparing base (22548f2) to head (48af43f).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #209   +/-   ##
=======================================
  Coverage   69.15%   69.15%           
=======================================
  Files          48       48           
  Lines        5761     5761           
  Branches     1031     1031           
=======================================
  Hits         3984     3984           
  Misses       1765     1765           
  Partials       12       12           

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[mljs-bot]

🤖 Created releases:

• v6.13.0

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