v1.0.0

Highlights

• Multi-standard calibration (NIST SRM 3600 + water + user-defined references)
• Universal attenuation coefficient calculator (mu) based on xraydb
• Buffer/solvent subtraction with alpha-scaling and uncertainty propagation
• Multi-format export: TSV, CSV, canSAS 1D XML, NXcanSAS HDF5
• GUI modernization with Sun Valley theme and dark mode

Quality & Reproducibility

• 50 automated tests passing across Linux/Windows/macOS and Python 3.10-3.13
• CI pipeline updated and publication metadata synchronized to v1.0.0

JOSS readiness

• paper/paper.md and paper/paper.bib refreshed for current feature set
• Added .zenodo.json, CODE_OF_CONDUCT.md, and updated CITATION.cff / codemeta.json