- Add toBuffer() with automatic allocation
- Deprecate intoBuffer() in favor of toBuffer()
- Add fromBytes() for binary string import
- Add fromArray() with optional shape parameter
- Swap full() parameter order to value, shape, dtype
- Update all documentation and tests

Replace separate build and assemble jobs with unified build job.
Each platform now builds, packages, and uploads independently
without waiting for other platforms to complete.

…ture

Integrate OpenBLAS (Unix) and Intel MKL (Windows) via ndarray-linalg
to provide optimized linear algebra routines backed by BLAS/LAPACK.

- Add Cholesky, QR, SVD, inverse, pseudo-inverse, solve, least-squares,
  rank, condition number, and determinant operations
- Add from_diag for constructing diagonal matrices
- Optimize dot product and matmul with BLAS-backed paths
- Refactor diagonal extraction for cleanliness
- Update build.rs for platform-specific static linking:
  - macOS: statically link libgfortran, libquadmath, libgcc
  - Linux: bundle libgfortran.so.5 with patchelf rpath
  - Windows: use Intel MKL static (no Fortran runtime)
- Extract release packaging into scripts/package.sh
- Update FFI bindings, PHP traits, tests, and documentation

[skip ci]