AJ ONeal 051a244083
fix(ipcohort): never return nil Cohort, zero value is empty set
All constructors (LoadFile, LoadFiles, ReadAll) now return &Cohort{}
on error instead of nil. Callers can use the result directly without
nil checks — an empty Cohort is a valid empty set that returns false
for all Contains calls.
2026-05-04 14:28:53 -06:00
..