feat(wars-cli): complete formula for wars-cli

## Summary

The `wars-cli` formula needs to be completed with proper values.

## Required Changes

1. Add a proper description
2. Set homepage URL
3. Remove all template comments
4. Set the correct license
5. Add proper `url` and `sha256` for a release
6. Update the `test` block with a real test

## References

- [Homebrew Formula Cookbook](https://docs.brew.sh/Formula-Cookbook)