fix(campaign): initialize delivery worker runtime

tests/test_sending_jobs.py

@@ -10,6 +10,7 @@ from govoplan_campaign.backend.db.models import (
     JobSendStatus,
     JobValidationStatus,
 )
+from govoplan_campaign.backend.capabilities import delivery_tasks_capability
 from govoplan_campaign.backend.sending.jobs import (
     SendJobResult,
     _queue_validation_statuses,
@@ -48,6 +49,17 @@ def _job(entry_id: str, **overrides):
 
 
 class CampaignQueueSelectionTests(unittest.TestCase):
+    def test_delivery_task_capability_configures_module_runtime_for_worker_processes(self):
+        registry = object()
+        settings = object()
+        context = SimpleNamespace(registry=registry, settings=settings)
+
+        with patch("govoplan_campaign.backend.runtime.configure_runtime") as configure:
+            capability = delivery_tasks_capability(context)
+
+        self.assertIsNotNone(capability)
+        configure.assert_called_once_with(registry=registry, settings=settings)
+
     def test_selects_queueable_jobs_without_reclassifying_retry_states(self):
         skipped_send = _job("1", send_status=JobSendStatus.FAILED_TEMPORARY.value)
         skipped_queue = _job("2", queue_status=JobQueueStatus.PAUSED.value)