fix: align schedule policy transport types

tests/wf_transport_rpc_http/test_rpc_models.py

@@ -5,6 +5,7 @@ from pydantic import ValidationError
 
 from wf_core.models.steps import InputExpressionBinding
 from wf_transport_rpc_http.models import (
+    CreateScheduleParams,
     InspectCapabilityParams,
     ListCapabilitiesParams,
     ReadRunTraceParams,
@@ -94,6 +95,20 @@ def test_update_schedule_params_match_create_numeric_constraints() -> None:
         )
 
 
+def test_schedule_policy_params_reject_unknown_values() -> None:
+    with pytest.raises(ValidationError):
+        CreateScheduleParams(
+            schedule_id="schedule",
+            deployment_id="deployment",
+            trigger={"kind": "oneshot", "at": "2026-09-08T12:00:00+00:00"},
+            overlap="queue",
+        )
+    with pytest.raises(ValidationError):
+        UpdateScheduleParams(
+            schedule_id="schedule", expected_revision=1, misfire="replay"
+        )
+
+
 def test_step_input_params_accept_composite_bindings_but_workflow_output_does_not() -> (
     None
 ):