Changes in version 0.2.1-0.1.0.9000                   

  - Added experimental sassy_fastx_iter() / sassy_fastx_next() chunked
    FASTA/FASTQ iteration backed by vendored needletail, with ALTREP
    character record IDs and raw ALTREP sequence/quality slices over
    immutable native batch buffers.
  - Added committed R Markdown/Markdown conformance and performance
    reports under benchmarks/, with upstream sassy CLI baselines and
    threaded Rsassy runs.
  - Added a webR/WebAssembly package check in CI.
  - Built webR packages with static Rust FFI symbols and wasm_simd128.
  - Added native package-level SIMD backends:
      - x86_64: scalar, AVX2, AVX-512.
      - arm64/aarch64: scalar, NEON.
  - Added one-shot backend selection:
      - automatic best-backend selection on first native call;
      - explicit sassy_set_backend() before first native call.
  - Added sassy_features() fields for installed backends, selected
    backend, compiled features, and CPU/runtime capabilities.
  - Added CRAN-style Rust vendoring with an offline Cargo vendor
    tarball.
  - Added CRAN-safe default Cargo parallelism and local fast Makefile
    targets.
  - Added list-based bulk search support for sassy_searcher_search() and
    sassy_search(): pattern and text are now lists of raw vectors or
    character scalars, so each raw vector is one byte sequence and
    callers can mix raw, character, and ALTREP-backed string elements.
  - Added bulk search strategies "pairwise", "batch_texts",
    "batch_patterns", and "encoded_patterns"/"v2".
  - Added native Rust/Rayon threading for bulk search; wasm32 remains
    serial.
  - Improved threaded strategy = "pairwise" scheduling to split
    Cartesian pattern/text tasks, which helps one-pattern-many-text
    workloads.
  - Ordered returned matches by input text, then start/end coordinate,
    then pattern index, matching record-oriented CLI expectations.
  - Added match_region = TRUE; reverse-strand regions are returned in
    pattern direction.
  - Added class sassy_matches and print.sassy_matches().
  - Added optional ANSI coloring for printed match regions.
  - Added SAM-compatible reverse-strand formatting with sam = TRUE and
    sassy_as_sam().
  - Added pattern_id and text_id mapping in the C data-frame
    construction path.
  - Added native C/Rust CRISPR search support for in-memory guide/target
    lists.
  - Added committed upstream sassy CLI fixtures under inst/extdata/ and
    tests that compare Rsassy output against those generated
    ground-truth tables.
  - Removed the raw R connection stream API before release; FASTA/FASTQ
    input will use an explicit record-oriented file API rather than
    stream-relative text coordinates.
  - Added result columns pattern_idx, text_idx, text_start, text_end,
    pattern_start, pattern_end, cost, strand, and cigar.
  - Added the R API functions sassy_searcher(), sassy_searcher_search(),
    and sassy_search().
  - Added configure checks for Cargo and rustc >= 1.91.0.
  - Added bundled Rust crate authorship and license notes.