Merge pull request #1 from shinyongpark/claude/analyze-project-issues-x0v6M

Add download_data.py to fetch real F1 data from GitHub

Enhance accuracy: regression models, richer features, fix feature bypass bug

Update egg-info SOURCES.txt to include new test files

Fix 5 high-priority issues: deps, duplicate code, target naming, GroupKFold, tests

Add project files under f1ml_src/ (no artifacts); remove submodule

Initial commit

Initial commit