feat(campaign): add durable operator queue controls

tests/test_documentation.py

@@ -284,6 +284,12 @@ def test_sender_sees_queue_and_send_only_with_the_mail_contract_and_profile_auth
     assert "campaigns.workflow.queue-delivery" in with_mail
     assert "campaigns.workflow.send-small-controlled-run" in with_mail
 
+    queue_topic = next(
+        topic for topic in CAMPAIGN_USER_DOCUMENTATION
+        if topic.id == "campaigns.workflow.queue-delivery"
+    )
+    assert any(link.href == "/operator" for link in queue_topic.links)
+
 
 def test_connected_authoring_tasks_require_their_declared_contracts_and_permissions() -> None:
     attachment_scopes = {