v0.2.7rc1 - LightGBM Scorecard Support (RC)

🧪 Release Candidate: LightGBM Scorecard Support

This is a release candidate for testing and feedback.

✨ What's New

• LightGBM Scorecard: Complete implementation of scorecard functionality for LightGBM models
• Critical Bug Fix: Fixed leaf ID mapping (55% Gini improvement: 0.40 → 0.90)
• Base Score Normalization: Proper handling with use_base_score parameter
• Full Documentation: Examples and getting-started notebook

📊 Performance

• Scorecard Gini: 0.9020
• Model Gini: 0.9021
• All 106 tests passing ✅

📦 Installation

pip install xbooster==0.2.7rc1

🤝 Feedback Welcome!

This is a release candidate - please test and report any issues on GitHub.

🙏 Contributors

• @RektPunk for the initial LightGBM implementation (PR #8)

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Full Changelog: v0.2.7a2...v0.2.7rc1