get_data_dirs_for_app had no btcpay arm — the default mapped to
/var/lib/archipelago/btcpay alone, leaving postgres-btcpay (where the
ACCOUNT lives) and nbxplorer on disk. Uninstall-with-wipe then reinstalled
to the old account still enabled. The btcpay arm now covers all three dirs,
for every alias and stack-member id. The map stays deliberately hardcoded:
deletion code must never derive its targets from a manifest at uninstall
time (a bad manifest could aim the wipe at another app's data).
Co-Authored-By: Claude <noreply@anthropic.com>
