"""Core analysis modules for HBAT.

This package contains the core analysis functionality split into focused modules:
- analysis.py: Main module with backward-compatible exports
- analyzer.py: Main analysis engine (MolecularInteractionAnalyzer)
- np_analyzer.py: High-performance analysis engine (NPMolecularInteractionAnalyzer)
- interactions.py: Interaction data classes
- parameters.py: Analysis parameters
- pdb_parser.py: PDB file parsing
- pdb_fixer.py: PDB structure fixing
- vector.py: 3D vector mathematics
- np_vector.py: NumPy-based vector mathematics
"""
