PR3: publish paper examples to docs/figures and refresh README

[iahncajigas]

Summary

Implements the PR3 docs/paper-examples deliverables:

• Added docs publisher entrypoint:
  • tools/publish_examples.m
  • Exports generated figures and published HTML from helpfiles/nSTATPaperExamples.mlx
  • Supports style toggle (modern default, legacy optional)
• Added citation metadata:
  • CITATION.cff
• Updated README:
  • MATLAB 2025b quickstart
  • publish_examples usage for modern/legacy
  • generated figure embed from repo-produced output
  • updated repository URL
• Added generated docs artifacts (from repository code only):
  • docs/figures/paper_examples_modern/figure_001.png
  • docs/figures/paper_examples_legacy/figure_001.png
  • docs/figures/published_html/nSTATPaperExamples_modern.html
  • docs/figures/published_html/nSTATPaperExamples_legacy.html
  • docs/figures/plot_structure_*.json
  • docs/figures/publish_report_*.json

Local verification

Executed on MATLAB 2025b:

addpath('/Users/iahncajigas/Library/CloudStorage/Dropbox/Research/Matlab/nSTAT_currentRelease_Local/tools');
publish_examples('Style','modern','Seed',0);
publish_examples('Style','legacy','Seed',0);

Both runs completed and wrote outputs under docs/figures/.

Notes

• No publication PDF images were embedded.
• All figure/html assets were generated directly from repository code.
• publish_examples defaults to ExecuteLiveScript=false to avoid mutating source .mlx files during docs generation.