Changes in version 0.0.1                        

Renamed and transferred from vrefs (mdsumner/vrefs) to blocklist
(hypertidy/blocklist).

Core functionality

  - mosaic_sources() constructs a sources table with access and public
    path columns, separating the scan-time path from the durable
    reference URL.

  - parse_mosaic_vrt() parses a GDAL multidimensional VRT produced by
    gdal mdim mosaic, extracting the logical array layout and source ->
    DestSlab mapping.

  - scan_source_chunks() walks the HDF5 chunk index of a single source
    file via rhdf5::h5getAllChunkInfo, returning block byte offsets and
    sizes as a flat table. Codec and storage chunk shape are read from
    the HDF5 creation property list.

  - write_kerchunk_parquet() writes a Zarr v2 kerchunk-Parquet store:
    .zmetadata plus per-variable refs.<N>.parq shards in fsspec
    LazyReferenceMapper layout, readable by VirtualiZarr, the GDAL Zarr
    driver, and any fsspec reference filesystem.

  - virtualize_mosaic() orchestrates the full pipeline: parses the VRT,
    scans each source for block references, and writes the reference
    store. Block references are computed per-source with no shared
    state, suitable for parallel execution via mirai or future.

Design notes

  - Block byte references are a flat table - (path, offset, size, raw),
    ready for independent and general usage.

  - access/public path duality: scan a local or NFS copy, write remote
    URLs into the references. Offsets are copy-invariant for
    byte-identical files.

  - Codec homogeneity is a hard boundary: a changed filter mask or
    scale/offset across files means the span cannot be one Zarr array.