Add GeometryActionModifier APIs

[Kyle-Ye]

Summary

Close #478

• Add OpenSwiftUI geometry action modifier APIs and provider plumbing.
• Add binder state handling for geometry-derived value updates.
• Add a shared geometry action modifier example.

[codecov]

Codecov Report

❌ Patch coverage is 0% with 106 lines in your changes missing coverage. Please review.
✅ Project coverage is 25.93%. Comparing base (ee1226c) to head (44aef80).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...Modifier/ViewModifier/GeometryActionModifier.swift	0.00%	106 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main     #915       +/-   ##
===========================================
+ Coverage   13.81%   25.93%   +12.12%     
===========================================
  Files         676      720       +44     
  Lines       44380    50774     +6394     
===========================================
+ Hits         6130    13170     +7040     
+ Misses      38250    37604      -646     

☔ View full report in Codecov by Harness.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[Kyle-Ye]

/uitest update

[augmentcode]

🤖 Augment PR Summary

Summary: Adds SwiftUI-compatible geometry action modifier APIs to run closures when geometry-derived values change.

Changes:

• Introduces _GeometryActionModifier (v4) and _GeometryActionModifier2 (v6) plus GeometryActionBinder plumbing.
• Computes an Equatable/Sendable value from GeometryProxy, tracks reset phases, and uses cycle detectors to prevent repeated updates per frame.
• Enqueues geometry-change actions via Update.enqueueAction and marks the binder attribute as transactional.
• Adds View.onGeometryChange(for:of:action:) overloads for new-value-only and old/new-value callbacks.
• Adds a shared example view and a new UI snapshot test for the modifier.
• Makes UnaryViewModifier/MultiViewModifier default list-building hooks public/available so cross-module modifiers can rely on them.

_{🤖 Was this summary useful? React with 👍 or 👎}

[augmentcode]

Review completed. 1 suggestion posted.

Comment augment review to trigger a new review at any time.

[Kyle-Ye]

/uitest update

[Kyle-Ye]

/uitest update

[Kyle-Ye]

/uitest ios update