Please include a summary of the changes and the reasoning behind them. If this PR resolves an open issue, link to it here: Fixes # (issue number)

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Movement/Preset addition (adding a new .posecode script and registering it)
• Documentation update

• My code follows the code style guidelines of this project
• I have performed a self-review of my own code
• My changes generate no new TypeScript/compiler warnings or errors:
  • Running npm run typecheck passes successfully
  • Running npm run build compiles without errors
• I have run the unit test suite (npm test) and all tests pass
• If applicable, I have run the fidelity evals (npm run eval) and all checks pass
• If I added a new movement, I ran node scripts/generate-content-pages.mjs to regenerate the static pages