[Kyle-Ye]

Summary

• Add subview and section collections so custom containers can inspect and transform resolved content.
• Integrate Group and ForEach extraction with view-list identity, traits, and rendering.
• Include deprecated SPI compatibility and public API documentation.

Validation

• Checked public API clients and focused collection and rendering probes.
• Verified optimized Group initializer code generation.

Closes #1234

[tuist]

🛠️ Tuist Run Report 🛠️

Tests 🧪

Scheme	Status	Ran test modules	Commit
OpenSwiftUI	✅	7	df1b1d5fa

Builds 🔨

Scheme	Status	Duration	Commit
OpenSwiftUI	✅	56.5s	df1b1d5fa

[codecov]

Codecov Report

❌ Patch coverage is 0.60120% with 496 lines in your changes missing coverage. Please review.
✅ Project coverage is 31.82%. Comparing base (c79b90a) to head (d58b98f).
⚠️ Report is 10 commits behind head on main.

Files with missing lines	Patch %	Lines
...penSwiftUICore/View/Input/SectionAccumulator.swift	0.00%	188 Missing ⚠️
.../OpenSwiftUICore/View/Subview/Group+Sections.swift	0.00%	90 Missing ⚠️
.../OpenSwiftUICore/View/Subview/Group+Subviews.swift	0.00%	56 Missing ⚠️
Sources/OpenSwiftUICore/View/Input/ViewList.swift	0.00%	37 Missing ⚠️
Sources/OpenSwiftUICore/View/Subview/Subview.swift	0.00%	33 Missing ⚠️
...s/OpenSwiftUI/View/Subview/SubviewCollection.swift	0.00%	30 Missing ⚠️
...nSwiftUICore/View/DynamicViewContent/ForEach.swift	12.50%	21 Missing ⚠️
...penSwiftUICore/View/Subview/ForEach+Subviews.swift	0.00%	21 Missing ⚠️
...penSwiftUICore/View/Subview/ForEach+Sections.swift	0.00%	18 Missing ⚠️
Sources/OpenSwiftUI/View/Subview/Subview.swift	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1243      +/-   ##
==========================================
+ Coverage   27.75%   31.82%   +4.06%     
==========================================
  Files         908      990      +82     
  Lines       67675    81703   +14028     
==========================================
+ Hits        18782    25999    +7217     
- Misses      48893    55704    +6811     

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