leonarski_fandClaude Opus 4.8 23d27f30c4 reader: split raw-image reading into HDF5ImageLocator + HDF5ImageSource
Decouple the raw-pixel side of JFJochHDF5Reader from the rest as the first
step toward swappable per-dataset metadata snapshots.

- HDF5ImageLocator: single owner of the legacy/VDS/contiguous layout resolution
  plus a persistent open-file cache, replacing the four duplicated resolvers
  (GetImageLocation, ReadSpots, ReadReflections) and their per-call file caches.
  Also hosts the source-mapping logic (former GetHDF5DataSource body).
- HDF5ImageSource: raw-pixel reading (locator + LoadImageDataset); the part whose
  links to files stay fixed while the metadata master may change.
- JFJochHDF5Reader keeps a thin GetImageLocation/GetRawImage/GetHDF5DataSource that
  delegate to image_source_; the six layout members are gone, parsed into a local
  Layout handed to the source at the end of ReadFile. Cache cleared on Close().

Verified: tests/jfjoch_test [HDF5] (79 cases / 1775 assertions), and
jfjoch_process/azint/extract_hkl/scale relink unchanged.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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Jungfraujoch

Application to receive data from the PSI JUNGFRAU and EIGER detectors.

All documentation is now placed in docs/ subdirectory and for the current version hosted on Jungfraujoch Read The Docs page.

S
Description
Jungfraujoch Data Acquisition System
Readme GPL-3.0
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