Exact basenames whose modification invalidates the entire test suite. A change to any of these short-circuits getChangedFilePathsInGitSince to null, signalling the caller to skip filtering and run everything. The qunitx config lives inside package.json per project convention, so package.json alone covers it.

BLAST_RADIUS_FILES.has('package.json'); // true — a lockstep change reruns the whole suite
BLAST_RADIUS_FILES.has('lib/utils/color.ts'); // false — regular files stay filterable