run-gate.sh ran only the DESTRUCTIVE tier; the cascade-uninstall suite
(uninstall→no-ghost→reinstall, the #13/#14/uninstall-hang regression
guard) existed but was never enabled by the gate. Add an opt-in single
cascade pass after the 5× loop (ARCHY_GATE_CASCADE=1, requires
ARCHY_ALLOW_DESTRUCTIVE=1), counted into the pass/fail tally. Kept out
of the 5× loop deliberately — uninstall/reinstall every iteration would
balloon runtime and re-pull images; one pass guards the class. Default
gate behavior unchanged. Validated: cascade-uninstall.bats 7/7 on .228.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
b7d9210784