Enhance CI workflow with coverage reporting

[rluders]

Added coverage report generation and upload to Codecov.

Summary by CodeRabbit

• Chores
  • Enhanced code quality assurance processes with automated coverage tracking and reporting.

[coderabbitai]

📝 Walkthrough

Walkthrough

The CI workflow now generates code coverage reports during test execution using Go's -coverprofile flag and uploads them to Codecov in a separate workflow step for tracking coverage metrics.

Changes

Cohort / File(s)	Summary
CI Coverage Integration .github/workflows/ci.yml	Added -coverprofile=coverage.txt to Go test step and introduced new step uploading coverage to Codecov using codecov/codecov-action@v5 with token authentication.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

Poem

🐰 Hop, hop—the coverage stats now gleam!
Each test a carrot in our pipeline dream,
Codecov awaits our metrics so bright,
Code quality tracked through the night! 📊

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title accurately summarizes the main change: adding coverage reporting to the CI workflow.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch codecov

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[codecov-commenter]

Welcome to Codecov 🎉

Once you merge this PR into your default branch, you're all set! Codecov will compare coverage reports and display results in all future pull requests.

Thanks for integrating Codecov - We've got you covered ☂️

[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.
Inline comments:
In @.github/workflows/ci.yml:
- Around line 44-47: The Codecov upload step ("Upload coverage reports to
Codecov" using codecov/codecov-action@v5) should be skipped when the
CODECOV_TOKEN is not available; update that job step to include a conditional
(if) that checks the secret (e.g., only run when secrets.CODECOV_TOKEN is
present/non-empty) so uploads are gated for forked PRs that lack repository
secrets. Ensure the condition is added to the same step that uses
codecov/codecov-action@v5 so the step is a no-op when the token is missing.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: e8483855-7398-43dc-aee3-bd037ef38e9f

📥 Commits

Reviewing files that changed from the base of the PR and between 12a1c9a and 8648dce.

📒 Files selected for processing (1)

• .github/workflows/ci.yml