The migration went away in 88ef6ca5, and the test resolved it by grepping
migrations/ for its banner, so it could only fail from that commit on. It
used the shipped 90-omarchy.conf as a fixture only; config-test and
zram-migration-test still cover that file.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>