Inventory of the 109 whole-file parser functions, a measurement of the
metadata ranges clawhdf5 touches on three corpus files against libhdf5,
options (storage trait, virtual slice, metadata prefetch, userfaultfd)
with how ros3, h5py+fsspec, pyfive, h5wasm and object_store do it, and
an incremental plan: M0 name-index lookups, M1 metadata over a Storage
trait, M2 raw data with batched ranges, M3 object_store backend,
M4 wasm fetch-driven lazy loading.
Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>
