ci: add automated unit testing

[ddlees]

Resolves BED-7282

Summary by CodeRabbit

• Chores
  • Implemented automated testing for pull requests to ensure code reliability and quality before deployment.

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[coderabbitai]

Walkthrough

Adds a new GitHub Actions workflow that automatically runs Go tests on pull requests targeting main and stage branches. The workflow configures Go installation from go.mod with caching and executes tests via go test ./....

Changes

Cohort / File(s)	Summary
CI/CD Workflow .github/workflows/go-test.yml	New GitHub Actions workflow triggered on PRs to main and stage/** branches. Configures Go installation with caching and runs go test ./.... Includes inactive vet job scaffold for future expansion.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Poem

🐰 A workflow so neat, automated and true,
Tests hop and skip with each PR that's new,
Go mod versions dance in the pipeline's light,
Caching speeds wings, making all things right,
Now every commit's checked before it takes flight! 🚀

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The PR title 'ci: add automated unit testing' accurately summarizes the main change—introducing a GitHub Actions workflow for automated Go unit testing.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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

✨ Finishing touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch BED-7282

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[AD7ZJ]

Looks good!