A subtest that opens Outbound > Queue right after sign-in and expects
postqueue's own line for an empty queue, not the page's "Could not read
the mail queue". Seen on the test server after the 2.0 deployment: the
Queue card said "Could not be read", and the panel's log had
"postqueue: fatal: Connect to the Postfix showq service: Permission
denied" on every poll. The fix follows in the next commit; this one is
expected to fail on its own.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>