v1.0.0

Initial release. Complete scanpy pipeline for PBMC 3k analysis:

• 6-step pipeline: QC, preprocessing, PCA/UMAP, clustering, annotation, figures
• Automated cell type annotation via marker gene scoring
• Multi-resolution Leiden clustering with silhouette evaluation
• 7 pytest tests, CI on Python 3.11/3.12
• Animated 3D UMAP visualisation