✅ Mock find_or_schedule_jobs in account endpoints spec

The account endpoints spec was failing because it attempted to
schedule jobs before the tenant schema was created. By mocking
find_or_schedule_jobs in this specific test, we avoid the schema
error while preserving the actual job scheduling behavior in other
tests.

spec/features/accounts_spec.rb

@@ -16,6 +16,7 @@
       allow(Apartment::Tenant).to receive(:switch).with(account.tenant) do |&block|
         block.call
       end
+      allow_any_instance_of(Account).to receive(:find_or_schedule_jobs)
     end
 
     around do |example|