Fix PathData storage size

[Kyle-Ye]

No description provided.

[augmentcode]

🤖 Augment PR Summary

Summary: Aligns PathData’s raw storage size with the intended union layout.

Changes:

• Reduces the backing buffer for `PathData` from 0x70 (112) to 0x60 (96) bytes in both Swift and the C header.

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[augmentcode]

Review completed. 1 suggestions posted.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 28.89%. Comparing base (c6e6fbd) to head (874d9eb).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #709      +/-   ##
==========================================
+ Coverage   28.86%   28.89%   +0.03%     
==========================================
  Files         589      589              
  Lines       35837    35835       -2     
==========================================
+ Hits        10343    10356      +13     
+ Misses      25494    25479      -15     

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