Write a README

When writing a project README:

1. Start with a one-line description of what the project does and who it’s for.
2. Add a quick start section: prerequisites, install steps, and how to run the project. Test these steps on a clean checkout.
3. Add a brief overview of the project structure if it’s not obvious.
4. Add usage examples showing the most common operations.
5. Add a development section: how to run tests, lint, and build.
6. Add environment setup instructions: required env vars, external services, database setup.
7. Keep it concise. Link to detailed docs rather than putting everything in the README.