gp3tools Python v0.1.0a1

First validated alpha release of the Python port of gp3tools.

Validated against the frozen R gp3tools 2.3.0 reference.

• 278 canonical R exports
• 285 Python public names
• 684 tests passing
• 90.06% line coverage
• R1-R4 behavioral and semantic parity validation
• static call-surface hard failures: 0
• native Gazepoint LPMM/RPMM pupil support
• 6/6 runnable examples passing
• headless plot smoke passing
• MkDocs strict build passing
• wheel and source distribution validated
• extracted-wheel artifact smoke passing
• GitHub Pages documentation deployed

Documentation:
https://stefanosbalaskas.github.io/gp3tools-python/

See RELEASE_VALIDATION.md for the full validation record.