fix(alerts): prevent executor queue starvation

apps/api/tests/test_cs1_auto_execute.py

@@ -117,7 +117,10 @@ async def test_webhook_router_writes_queue_receipt_without_side_effect(
     )
     append = AsyncMock()
 
-    async def queue(**_kwargs):
+    queue_kwargs: dict = {}
+
+    async def queue(**kwargs):
+        queue_kwargs.update(kwargs)
         return {
             "schema_version": "ai_decision_controlled_executor_handoff_v1",
             "status": "controlled_check_mode_queued",
@@ -149,8 +152,11 @@ async def test_webhook_router_writes_queue_receipt_without_side_effect(
 
     assert handoff["queued"] is True
     assert handoff["side_effect_performed"] is False
+    assert handoff["execution_priority"] == 30
+    assert queue_kwargs["proposal_data"]["execution_priority"] == 30
     append.assert_awaited_once()
     assert append.await_args.kwargs["context"]["side_effect_performed"] is False
+    assert append.await_args.kwargs["context"]["execution_priority"] == 30
 
 
 @pytest.mark.asyncio