Add OSUI renderer support for Image

[Kyle-Ye]

Summary

• Implement async image layer updates for compatible image changes and related layer properties.
• Add GraphicsImage render support for CG images, vector glyphs, and vector layers.
• Add Example/setup.sh and README guidance so Example setup uses the Tuist version pinned by Example/mise.toml.

[augmentcode]

🤖 Augment PR Summary

Summary: This PR adds renderer support for Image in OpenSwiftUI by enabling Core Animation layer updates and adding concrete rendering for GraphicsImage content types.

Changes:

• Added async-layer property support for contentsCenter and contentsScale so image layer geometry/scale can be updated incrementally.
• Refactored DisplayListViewPlatform state update entry points by adding small inherited-view helper wrappers and making the underlying updateState/updateStateAsync private.
• Implemented GraphicsImage.render(at:prefersMask:) to return CG images for CGImage, vector glyph, and vector layer-backed images (when supported).
• Implemented ImageLayer.updateAsync to allow compatible async updates for CGImage/IOSurface/vector-glyph cases and to update relevant layer properties (center/scale/multiply color/background).
• Added a CoreUI-only helper on CUINamedVectorGlyph to rasterize glyphs while temporarily setting variable-value bounds under a lock.
• Updated the Example app to show image conversion behavior and added Example/setup.sh plus README instructions to use the pinned Tuist via mise.

Technical Notes: The async update path relies on property-diffing and key-path updates on the backing CALayer, and conditionally compiles vector glyph rendering behind OPENSWIFTUI_LINK_COREUI.

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[augmentcode]

Review completed. 1 suggestion posted.

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[augmentcode]

ImageLayer.updateAsync treats .vectorGlyph as compatible even when GraphicsImage.scale changes, but the underlying layer.contents may have been rasterized at the old scale (via GraphicsImage.render/CUINamedVectorGlyph.rasterizeImage). Consider making scale changes force a full update here (return false) unless the contents is guaranteed to be scale-independent.

Severity: medium

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[codecov]

Codecov Report

❌ Patch coverage is 0% with 156 lines in your changes missing coverage. Please review.
✅ Project coverage is 26.98%. Comparing base (899460f) to head (3099bfd).

Files with missing lines	Patch %	Lines
...ources/OpenSwiftUICore/View/Image/ImageLayer.swift	0.00%	63 Missing ⚠️
...ces/OpenSwiftUICore/View/Image/GraphicsImage.swift	0.00%	42 Missing ⚠️
...e/Render/DisplayList/DisplayListViewPlatform.swift	0.00%	29 Missing ⚠️
.../OpenSwiftUICore/View/Image/VectorImageLayer.swift	0.00%	14 Missing ⚠️
...ore/Render/DisplayList/DisplayListAsyncLayer.swift	0.00%	5 Missing ⚠️
...re/Render/DisplayList/DisplayListViewUpdater.swift	0.00%	3 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #873      +/-   ##
==========================================
- Coverage   27.07%   26.98%   -0.09%     
==========================================
  Files         678      678              
  Lines       47004    47149     +145     
==========================================
- Hits        12725    12723       -2     
- Misses      34279    34426     +147     

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