Fix preference bridge ownership and align preference internals

[Kyle-Ye]

Summary

• Borrow unmanaged ViewGraph children without consuming ownership during preference bridge updates
• Align preference modifier isolation and preference API signatures
• Rename PreferencesAggregator to PreferenceAggregator
• Improve unqualified type-name handling and simplify decoder identifiers
• Correct minor internal metadata typos

[codecov]

Codecov Report

❌ Patch coverage is 12.50000% with 7 lines in your changes missing coverage. Please review.
✅ Project coverage is 27.30%. Comparing base (1ed914d) to head (541f4ed).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...SwiftUICore/Data/Preference/PreferenceBridge.swift	0.00%	4 Missing ⚠️
...penSwiftUICore/Data/Preference/PreferenceKey.swift	50.00%	1 Missing ⚠️
...re/Data/Preference/PreferenceWritingModifier.swift	0.00%	1 Missing ⚠️
...s/OpenSwiftUICore/Render/PlatformViewFactory.swift	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main     #966       +/-   ##
===========================================
+ Coverage   15.12%   27.30%   +12.17%     
===========================================
  Files         687      730       +43     
  Lines       46487    53134     +6647     
===========================================
+ Hits         7033    14509     +7476     
+ Misses      39454    38625      -829     

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[Kyle-Ye]

/uitest update

[tuist]

🛠️ Tuist Run Report 🛠️

Tests 🧪

Scheme	Status	Cache hit rate	Tests	Skipped	Ran	Commit
OpenSwiftUI	❌	0 %	1004	0	1004	e5a72add1

Failed Tests ❌

• OpenSwiftUI: 6 failed tests (View all)

• metricsIncludesLayoutMargins() · OpenSwiftUICoreTests · MetricsTests
  (margined.size.height → 29.0).isApproximatelyEqual(to: FixedFontMetrics.lineHeight + 10 → 26.0)

• metricsRespectsLineLimit() · OpenSwiftUICoreTests · MetricsTests
  (limited.size.height → 37.0).isApproximatelyEqual(to: FixedFontMetrics.lineHeight * 2 → 32.0)

• metricsOfSingleLine() · OpenSwiftUICoreTests · MetricsTests
  (result.size.height → 19.0).isApproximatelyEqual(to: FixedFontMetrics.lineHeight → 16.0): // The line height and the baseline are rounded to the pixel length.

• textSpacingWithVerticalWritingModeUsesSideEdges() · OpenSwiftUICoreTests · TextSpacingTests
  (value → -15.0).isApproximatelyEqual(to: expected → -12.0)

• textSpacingWithStandardSizing(isTextSpacingV2Enabled:) · OpenSwiftUICoreTests · TextSpacingTests
  (value → -15.0).isApproximatelyEqual(to: expected → -12.0)

Showing 5 of 6 failed tests. See links above for full details.

Builds 🔨

Scheme	Status	Duration	Commit
OpenSwiftUI	✅	1m 17s	e5a72add1