feat(compute): update discovery doc and generate new services

[google-cloud-cpp-bot]

Automated update of Compute Engine Discovery Document and generated C++ client code.

Triggered automatically by the update-compute-discovery workflow.

[google-cla]

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[gemini-code-assist]

Code Review

This pull request introduces several new generated services to the Google Cloud Compute C++ SDK, specifically global_frontend_settings, image_views, managed_rulesets, and project_views. This includes the generation of clients, connections, REST stubs, mocks, and samples for these services, alongside updates to environment variables and documentation. The review feedback highlights style guide violations in the generated code, specifically the use of default parameters within internal namespaces in GlobalFrontendSettingsRestMetadata and the use of auto type deduction obscuring a StatusOr return type in the client samples. These issues should be addressed by updating the code generator rather than modifying the generated files directly.

[colinmoy]

/gcbrun

[codecov]

Codecov Report

❌ Patch coverage is 80.00000% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 92.33%. Comparing base (1223af0) to head (aebdd44).

Files with missing lines	Patch %	Lines
docfx/doxygen2markdown.cc	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #16483      +/-   ##
==========================================
- Coverage   92.35%   92.33%   -0.03%     
==========================================
  Files        2258     2258              
  Lines      216448   216448              
==========================================
- Hits       199909   199848      -61     
- Misses      16539    16600      +61     

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[scotthart]

/gcbrun