fix(cron): prevent unbound automation execution

tests/channels/test_websocket_http_routes.py

@@ -1026,6 +1026,20 @@ async def test_webui_automations_route_lists_all_jobs_and_allows_user_actions(
         )
         assert disabled_run.status_code == 409
 
+        unbound_run = await _http_get(
+            f"{base_url}/api/webui/automations/run?id={incomplete_job.id}",
+            headers=auth,
+        )
+        assert unbound_run.status_code == 409
+        assert "no linked chat" in unbound_run.text
+
+        unbound_enable = await _http_get(
+            f"{base_url}/api/webui/automations/enable?id={incomplete_job.id}",
+            headers=auth,
+        )
+        assert unbound_enable.status_code == 409
+        assert "no linked chat" in unbound_enable.text
+
         protected_delete = await _http_get(
             f"{base_url}/api/webui/automations/delete?id=heartbeat",
             headers=auth,