Run UI tests on demand

[Kyle-Ye]

Summary

• remove default pull_request triggering for the UI Tests workflow
• keep push-to-main UI tests and add manual workflow_dispatch platform selection
• add maintainer-gated /uitest PR comment triggers for all, iOS, or macOS UI tests
• checkout the PR head SHA for comment-triggered runs

Validation

• git diff --check
• Ruby YAML syntax parse for .github/workflows/uitests.yml

Note: the /uitest comment entrypoint becomes active after this workflow change lands on the default branch.

[augmentcode]

🤖 Augment PR Summary

Summary: This PR changes the UI Tests workflow to run only on pushes to main and on explicit, on-demand requests.

Changes:

• Removes the default pull_request trigger for UI tests
• Adds a workflow_dispatch input to select platform (all/ios/macos)
• Adds an issue_comment trigger gated to maintainers via /uitest commands
• Checks out the PR head SHA for comment-triggered runs to test the actual PR code
• Sets explicit read-only workflow permissions needed for PR resolution

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[augmentcode]

Review completed. 1 suggestion posted.

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

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 13.74%. Comparing base (32b3832) to head (279ca3c).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #863      +/-   ##
==========================================
- Coverage   13.74%   13.74%   -0.01%     
==========================================
  Files         637      637              
  Lines       41167    41167              
==========================================
- Hits         5660     5658       -2     
- Misses      35507    35509       +2     

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[Kyle-Ye]

/uitest ios