Fix Xcode 26 support regression

[Kyle-Ye]

Close #773

[augmentcode]

🤖 Augment PR Summary

Summary: Adds a conditional NSStringDrawingOptions shim entry for Xcode 26 / OS 26 SDKs to match updated UIFoundation headers.
Why: Prevents build regressions when compiling against newer SDKs where this enum case exists.

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[augmentcode]

Review completed. 1 suggestions posted.

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[augmentcode]

This #if guard checks iOS/macOS/tvOS/watchOS SDK macros, but the new option is also marked API_AVAILABLE(..., visionos(26.0)). If visionOS SDKs gate availability via vision-specific macros (e.g. __VISION*_VERSION_MAX_ALLOWED), consider including that here so the shim stays in sync when building for visionOS.

Severity: medium

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 13.13%. Comparing base (560ced4) to head (2e981d4).
⚠️ Report is 3 commits behind head on main.

❗ There is a different number of reports uploaded between BASE (560ced4) and HEAD (2e981d4). Click for more details.

HEAD has 1 upload less than BASE

Flag	BASE (560ced4)	HEAD (2e981d4)
	2	1

Additional details and impacted files

@@             Coverage Diff             @@
##             main     #783       +/-   ##
===========================================
- Coverage   26.20%   13.13%   -13.07%     
===========================================
  Files         650      620       -30     
  Lines       40232    36773     -3459     
===========================================
- Hits        10543     4831     -5712     
- Misses      29689    31942     +2253     

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