feat(Maths): add baby-step giant-step discrete log

[felipeofdev-ai]

Description

Adds Maths/BabyStepGiantStep.js implementing baby-step giant-step discrete logarithm modulo a prime.

Reference: https://en.wikipedia.org/wiki/Baby-step_giant-step

Checklist

• I have read CONTRIBUTING.md
• Tests added (Vitest)
• DIRECTORY.md updated

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— Felipe Fernandes · Systems & Agentic AI Engineer
https://github.com/felipeofdev-ai · https://felipeofdev-ai.github.io/

[codecov-commenter]

Codecov Report

❌ Patch coverage is 95.58824% with 3 lines in your changes missing coverage. Please review.
✅ Project coverage is 85.95%. Comparing base (5c39e87) to head (296b78d).

Files with missing lines	Patch %	Lines
Maths/BabyStepGiantStep.js	95.58%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1914      +/-   ##
==========================================
+ Coverage   85.91%   85.95%   +0.03%     
==========================================
  Files         379      380       +1     
  Lines       19778    19846      +68     
  Branches     3016     3036      +20     
==========================================
+ Hits        16993    17058      +65     
- Misses       2785     2788       +3     

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