fix: Replace deprecated ppdf functions with their replacements

[trevorld]

Co-Authored-By: Claude Sonnet 4.6 noreply@anthropic.com

[codecov]

Codecov Report

❌ Patch coverage is 83.33333% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 86.92%. Comparing base (8474200) to head (99ea382).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
R/parse_moves.R	83.33%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #25   +/-   ##
=======================================
  Coverage   86.92%   86.92%           
=======================================
  Files           8        8           
  Lines        1224     1224           
=======================================
  Hits         1064     1064           
  Misses        160      160           

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