Fix Compute 0.2.1 crash and add CI for compute

[Kyle-Ye]

Summary

• Fix Compute 0.2.1 crash issue (both source and binary)
• Add Compute in StdoutRenderer CI

Dependency

OpenSwiftUIProject/OpenAttributeGraph#228

[augmentcode]

🤖 Augment PR Summary

Summary: Updates dependency + tooling to address a Compute 0.2.1 crash and ensure the stdout renderer can be exercised with the Compute backend.

Changes:

• Bumps OpenAttributeGraph revision in Package.resolved (crash fix lives in the dependency).
• Extends the macOS stdout-renderer CI job to run with both AttributeGraph and Compute via environment flags.
• Adds Example/mise.compute.toml and a ./setup.sh --compute flow to generate the Example project using Compute.
• Updates docs and makes Renderer/Stdout/run-example.sh respect pre-set backend env vars.

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[augmentcode]

Review completed. 1 suggestion posted.

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[augmentcode]

With os/xcode-version/release already forming a base matrix, these include entries only add extra keys and may be merged onto the same combination (potentially leaving only the last backend values), so CI might not actually run once per backend. Consider structuring the matrix so the backend dimension produces distinct job combinations.

Severity: medium

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 26.03%. Comparing base (22944d7) to head (bd55b82).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #911   +/-   ##
=======================================
  Coverage   26.03%   26.03%           
=======================================
  Files         717      717           
  Lines       50566    50566           
=======================================
+ Hits        13165    13166    +1     
+ Misses      37401    37400    -1     

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