docs: add CI and license badges to README

[g-eoj]

Adds CI status and license badges to the top of the README.

Closes #17

Greptile Summary

Added CI workflow status and Apache 2.0 license badges to the top of the README.

• CI badge links to the GitHub Actions workflow at .github/workflows/ci.yml
• License badge uses shields.io to display the Apache 2.0 license
• Both badges are properly formatted and positioned below the title

Confidence Score: 5/5

• This PR is safe to merge with no risk
• Simple documentation change that only adds two badge links to the README; both referenced files (CI workflow and LICENSE) exist and are correctly configured
• No files require special attention

Important Files Changed

Filename	Overview
README.md	Added CI status and license badges at the top of the README

_{Last reviewed commit: a8675ea}