Sika-Zheng-Lab/Shiba: v0.8.2

[v0.8.2] - 2026-02-23 Fixed Fixed an issue in PCA analysis where NaN values could appear after z-score normalization when features have zero variance. This was particularly common when KNN imputation was used for PSI matrices with limited valid values. Fixed compatibility with styleframe==4.2 for Excel output generation (#84). Added Added comprehensive unit tests (176 tests) covering core library functions, PSI calculations, event detection, PCA, plotting, and configuration validation. Added GitHub Actions workflow for automated testing with code coverage reporting via Codecov. Added workflow_dispatch-based version bump workflow to replace manual VERSION file editing. Changed Python entry points (shiba.py, scshiba.py) and Snakemake workflows now read version dynamically from the VERSION file instead of hardcoding it. Modernized GitHub Actions workflows: updated to latest action versions and replaced deprecated ::set-output syntax.