Exit gracefully if all gwas fail QC#431

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kal26 wants to merge 5 commits intoStatFunGen:mainfrom

kal26:feat/graceful-exit-no-gwas

Commits on Dec 19, 2025

Add comprehensive file existence checks with clear error messages
kal26
committed

Commits on Dec 30, 2025

Commits on Jan 13, 2026

add num_threads control to colocboost pipeline
kal26
committed

Commits on Jan 15, 2026

Add graceful exit when all GWAS studies are skipped in QC
kal26
committed