EnsureCustomerActive used session()->invalidate() to sign a suspended
or closed customer out. In shared-host mode the console and the
portal keep their login key in one session, so invalidate() (flush()
+ migrate(true)) silently signed out an operator elsewhere in that
same browser too. Same fix as the console's own /logout route:
regenerate() gets a fresh session id without flushing attributes
belonging to another guard.