Wire Celery Beat periodic sync with ingestion run tracking

tests/test_ingestion_sync.py

@@ -67,6 +67,10 @@ def test_incremental_sync_runs_successfully(settings):
 
     assert run.status == IngestionRun.RunStatus.SUCCESS
     assert run.records_processed > 0
+    assert run.started_at is not None
+    assert run.finished_at is not None
+    assert run.finished_at >= run.started_at
+    assert run.error_summary == ""
 
 
 @pytest.mark.django_db
@@ -80,6 +84,9 @@ def test_run_sync_handles_rate_limit(settings):
     run = IngestionRun.objects.order_by("-id").first()
     assert run is not None
     assert run.status == IngestionRun.RunStatus.FAILED
+    assert run.started_at is not None
+    assert run.finished_at is not None
+    assert "Rate limit" in run.error_summary
     assert IngestionError.objects.filter(ingestion_run=run).exists()
 
     os.environ.pop("PROVIDER_MVP_FORCE_RATE_LIMIT", None)