Add CI/CD workflows to run validations and unit tests for PRs

[csmangum]

We need to complete our CI/CD pipeline by adding GitHub Actions workflows that:

• Automatically run validations (e.g. linting, formatting, static analysis)
• Execute all unit tests
• Trigger on pull requests targeting main branches (e.g., main, dev, etc.)

✅ Tasks

• Create .github/workflows/ci.yml (or similar) with:

  • on: [pull_request] trigger
  • Job for code validation (e.g. flake8, black, eslint, etc.)
  • Job for running unit tests (e.g. pytest, jest, unittest)

• Ensure jobs fail if any validation or test fails

• (Optional) Add job matrix for different Python/Node versions if needed

• (Optional) Add caching to speed up workflow runs

• Test workflow with a sample PR

📌 Notes

• All CI steps should complete quickly and clearly show failures.
• This will help enforce code quality and reliability for all incoming PRs.