Upload folder using huggingface_hub

Fix metadata in README.md

Enhance README layout and metadata

Score range fix (0, 1) in grader

Score range fix (0, 1)

Add test_local.py for environment testing

Fix score decimal formatting to strictly 2 places

Fix unhandled exception by wrapping network ops in try/finally

Fix grader Series comparison length crash

Fix inference json fallback logic

Fix ImportError and EnvClient typing in client.py

Upload folder using huggingface_hub

initial commit