Exclude bin/ directory from code coverage

[kraftbj]

Summary

• Excludes the bin/ directory from Codecov coverage calculations

The bin/ directory contains CLI and infrastructure scripts that make HTTP requests to external APIs (GitHub REST/GraphQL). These are integration scripts that are inherently difficult to unit test without extensive HTTP mocking.

See #354 as an example - the codecov/patch check passes (confirming the testable parsing logic has coverage), but codecov/project fails because the CLI orchestration code in bin/ isn't covered.

Test plan

• Verify Codecov no longer counts bin/ files toward project coverage

[github-actions]

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Props kraftbj, bernhard-reiter.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 52.65%. Comparing base (9becdab) to head (ad698ca).
⚠️ Report is 1 commits behind head on trunk.

Additional details and impacted files

@@             Coverage Diff              @@
##              trunk     #355      +/-   ##
============================================
- Coverage     53.84%   52.65%   -1.20%     
  Complexity     4423     4423              
============================================
  Files           298      298              
  Lines         39468    39468              
============================================
- Hits          21251    20780     -471     
- Misses        18217    18688     +471     

Flag	Coverage Δ
e2e-js	45.84% <ø> (-0.02%)	⬇️
e2e-php	40.36% <ø> (-2.01%)	⬇️
javascript	15.07% <ø> (ø)
phpunit	29.95% <ø> (ø)

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[ockham]

See #354 as an example - the codecov/patch check passes (confirming the testable parsing logic has coverage), but codecov/project fails because the CLI orchestration code in bin/ isn't covered.

Seems to be passing now though for that PR?

[kraftbj]

Yeah, the last commit apparently changed the coverage so it wouldn't fail. Here's an example of the run where it did fail https://github.com/WordPress/secure-custom-fields/runs/60370170867

I'm not exactly sure why it differed so much between those two commits.

[Copilot]

Pull request overview

Updates Codecov configuration to exclude the repository’s bin/ directory (CLI/infrastructure scripts) from coverage calculations, so overall project coverage reflects unit-testable application code rather than integration-oriented orchestration scripts.

Changes:

• Add bin/ to the ignore: list in .codecov.yml to remove it from Codecov project coverage totals.

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[Copilot]

The ignore list uses bare directory names (e.g., 'build', 'dist', 'docs') without a trailing slash. For consistency and to avoid any pattern-matching edge cases, consider changing 'bin/' to match the existing style (e.g., 'bin' or an explicit glob like 'bin/**').

Suggested change

	- 'bin/' # CLI/infrastructure scripts - integration code with external APIs
	- 'bin' # CLI/infrastructure scripts - integration code with external APIs