Document DS02 spectral QC port (QA00 v2.2 rename, new QA02, shared modules) - Code-Modules: QA00_SpectralValidation + QA02_SpectralRunComparison sections, updated tree/naming/args/usage. - Core-Functions: project-before-site auto-detect order, new sensors + all-caps tolerance, machine-independent filesystem-check note, outputs_up_to_date and spectral_qc module docs. - Changelog: QC_Spectral_Tables/, QC_spectra_report.json, QC_plots/, and QCReports/ output folders.
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