SAURAV-GGD/Green_Lantern — reverse-engineered prompt

Build me a small Python project called Green Lantern that works like a green squares bot for GitHub. I want it to be simple to run from the command line and easy for a beginner to understand. The main idea is that it can make a harmless update on a schedule so my GitHub contribution calendar stays active, with clear safeguards so it does not spam commits or touch the wrong files.

Please set up the project cleanly, add a readable README with setup steps, explain what environment variables or tokens are needed, and include a sample config for choosing the repo, commit message, and how often it runs. If possible, add a GitHub Actions workflow so it can run automatically, but make it easy to disable. Keep the code small, well commented, and add basic logging and error handling.

The current README does not say much, so make reasonable choices and look up current GitHub docs online if you need to.