fix: harden Polygon operation validation

tests/test_state_machine.py

@@ -84,6 +84,20 @@ class TestInstanceOperations:
         assert inst["state"]["params"]["resourceRealm"] == "dummy"
         assert inst["state"]["params"]["durationMs"] == "0"
 
+    def test_create_applies_supplied_operation_params(self):
+        """Параметры create перекрывают дефолты из stateParams."""
+        st = mock_state.state
+        uid = st.create_instance(1, "test", SERVICES[1])
+        op_uid = st.create_operation(uid, 18, "create", "instance", "create")
+        st.set_param(op_uid, 242, "custom-realm")
+        st.set_param(op_uid, 198, "999")
+
+        state_machine.apply_effect(op_uid, st, SERVICES)
+
+        inst = st.get_instance(uid)
+        assert inst["state"]["params"]["resourceRealm"] == "custom-realm"
+        assert inst["state"]["params"]["durationMs"] == "999"
+
     def test_create_sets_state_out(self):
         """create → state.out из шаблона (пустой для dummy, заполнен для pg)."""
         uid, _ = _create_and_run(90, "pg", 19, "create")
@@ -92,10 +106,13 @@ class TestInstanceOperations:
         assert "databases" in inst["state"]["out"]
 
     def test_delete_removes_instance(self):
-        """delete → инстанс удалён."""
-        uid, _ = _create_and_run(1, "test", 18, "create")
-        _run_op(uid, 71, "delete", action="delete")
+        """delete удаляет инстанс, но сохраняет историю операций для polling."""
+        uid, create_op_uid = _create_and_run(1, "test", 18, "create")
+        delete_op_uid = _run_op(uid, 71, "delete", action="delete")
         assert mock_state.state.get_instance(uid) is None
+        assert create_op_uid in mock_state.state.operations
+        assert delete_op_uid in mock_state.state.operations
+        assert delete_op_uid in mock_state.state.op_params
 
     def test_suspend_sets_suspended(self):
         """suspend → статус suspended."""