feat(postbox): schedule lifecycle notification reconciliation

tests/test_postbox_routing_worker.py

@@ -25,6 +25,16 @@ class _RoutingProvider:
         del session, tenant_id, limit
         return {"selected": 0}
 
+    def reconcile_notification_lifecycle(
+        self,
+        session,
+        *,
+        tenant_id=None,
+        limit=50,
+    ):
+        del session, tenant_id, limit
+        return {"scanned": 0}
+
 
 class PostboxRoutingWorkerTests(unittest.TestCase):
     def test_contract_is_runtime_checkable_and_resolved(self) -> None:
@@ -59,6 +69,13 @@ class PostboxRoutingWorkerTests(unittest.TestCase):
             "selected": 1,
             "delivered": 1,
         }
+        provider.reconcile_notification_lifecycle.return_value = {
+            "scanned": 2,
+            "changed": 1,
+            "events": 2,
+            "notifications": 1,
+            "notification_failures": 0,
+        }
 
         with (
             patch(
@@ -81,8 +98,15 @@ class PostboxRoutingWorkerTests(unittest.TestCase):
             tenant_id="tenant-1",
             limit=25,
         )
+        provider.reconcile_notification_lifecycle.assert_called_once_with(
+            session,
+            tenant_id="tenant-1",
+            limit=25,
+        )
         session.commit.assert_called_once_with()
         self.assertEqual(1, result["delivered"])
+        self.assertEqual(2, result["lifecycle_scanned"])
+        self.assertEqual(1, result["lifecycle_notifications"])
 
     def test_route_and_periodic_recovery_are_registered(self) -> None:
         self.assertEqual(