"""Classification subpackage (§3).

Public modules:
  - data.py        : unified data loader for both tasks
  - classical.py   : Naive Bayes + Logistic Regression (W7)
  - lstm.py        : Bi-LSTM with self-trained Word2Vec init (W8)
  - bert.py        : Legal-BERT fine-tuning (W8)
  - train.py       : unified CLI training entry point
  - explain.py     : SHAP-based explanations for the linear models
"""