Introduce a new `Sparse` format alongside existing `Columnar` and `Packed` variants, enabling optimized row-major pairwise counting for distance and similarity metrics via the `CountPartials` trait. Update storage detection priorities, extend matrix dispatch logic to sparse backends, and correct diagonal/off-diagonal formulas in bit matrix partial computations. Expand layer APIs with format-agnostic `nonzero_iter`, update usage documentation for the `--sparse` flag, and add comprehensive tests verifying roundtrip integrity and metric equivalence against dense implementations.
Introduces a comprehensive documentation set covering theoretical foundations, CLI usage, installation, and system architecture. Adds MkDocs configuration and Makefile targets to generate, serve with live reload, and clean the documentation site. Includes citation styles and bibliography files for academic references.
Eric Coissac