Add transform origins and CSS-style composed transforms

[scorsin-oai]

Description

This change adds support for the transform attribute which works like on Web and allows an arbtrary set of transforms to be applied in sequence. It also adds suport for the transformOrigin attribute which tells how the transform should be applied.

Type of Change

• Bug fix (non-breaking change that fixes an issue)
• Documentation improvement
• Performance optimization
• Test improvement
• Other (please describe)

Testing

• Tests pass locally (bazel test //...)
• Added/updated tests for changes (if applicable)
• Tested on multiple platforms (iOS/Android/Web/macOS as applicable)
• Manual testing performed (describe below)

Testing Details

Checklist

• Code follows project style guidelines
• Documentation updated (if needed)
• No breaking changes (or documented in description)
• Commit messages follow conventional format
• No secrets, API keys, or internal URLs included

Related Issues

Additional Context

[github-actions]

⚠️ Bazel & CI Test Results

Test Suite	Result
Linux: Build Compiler	✅ success
API Surface Check	✅ success
Linux: C++ Tests	✅ success
Valdi Smoke Tests	✅ success
Linux: Build & Export	✅ success
Snapshot Tests	✅ success
macOS: C++ & Platform Tests	❌ failure

Some tests failed. Please check the workflow logs for details.

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