[Bug Fix] Fix async render issue

[Kyle-Ye]

No description provided.

[augmentcode]

🤖 Augment PR Summary

Summary: Fixes issues in the async rendering/update pipeline by ensuring render-host state is sourced consistently and by tightening preference-change detection.

Changes:

• Move `_UIHostingView`’s `ViewRendererHost` state (`currentTimestamp`, `propertiesNeedingUpdate`, etc.) to forward into `UIHostingViewBase`.
• Route async-render follow-up scheduling through `host.requestUpdate(after:)` from `UIHostingViewBase`.
• Adjust `GraphHost.updatePreferences()` to only report changes when preference seeds actually differ.

Technical Notes: This reduces redundant updates and aligns async rendering timing/state with the underlying base host implementation.

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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 28.83%. Comparing base (874ef85) to head (f0f63ae).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #707      +/-   ##
==========================================
- Coverage   28.87%   28.83%   -0.04%     
==========================================
  Files         589      589              
  Lines       35837    35837              
==========================================
- Hits        10347    10333      -14     
- Misses      25490    25504      +14     

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