feat: add workflow action runtime policies

backend/tests/test_workflow_v3.py

@@ -92,6 +92,60 @@ class WorkflowGraphTests(unittest.TestCase):
         agent["data"]["entrySpeech"] = "您好，{{customer}}"
         self.assertEqual(validate_graph(normalized), [])
 
+    def test_action_defaults_preserve_legacy_result_assignment_behavior(self):
+        graph = valid_graph()
+        graph["nodes"].extend(
+            [
+                {
+                    "id": "legacy_override",
+                    "type": "action",
+                    "data": {"resultAssignments": {"status": "order.status"}},
+                },
+                {"id": "legacy_none", "type": "action", "data": {}},
+                {
+                    "id": "explicit_inherit",
+                    "type": "action",
+                    "data": {"resultAssignmentMode": "inherit"},
+                },
+            ]
+        )
+
+        normalized = normalize_graph(graph)
+        actions = {
+            node["id"]: node["data"]
+            for node in normalized["nodes"]
+            if node["type"] == "action"
+        }
+
+        self.assertEqual(
+            actions["legacy_override"]["resultAssignmentMode"], "override"
+        )
+        self.assertEqual(actions["legacy_none"]["resultAssignmentMode"], "none")
+        self.assertEqual(
+            actions["explicit_inherit"]["resultAssignmentMode"], "inherit"
+        )
+        self.assertEqual(actions["legacy_none"]["resultAssignments"], {})
+        self.assertEqual(actions["legacy_none"]["userInputPolicy"], "queue")
+
+    def test_action_advanced_settings_are_validated(self):
+        graph = valid_graph()
+        graph["nodes"].append(
+            {
+                "id": "action",
+                "type": "action",
+                "data": {
+                    "resultAssignmentMode": "unexpected",
+                    "resultAssignments": [],
+                    "userInputPolicy": "cancel",
+                },
+            }
+        )
+        errors = validate_graph(graph)
+
+        self.assertTrue(any("结果变量模式无效" in error for error in errors))
+        self.assertTrue(any("结果变量映射必须是对象" in error for error in errors))
+        self.assertTrue(any("用户输入策略无效" in error for error in errors))
+
     def test_voice_resource_creates_isolated_runtime_config(self):
         base = AssistantConfig(type="workflow", asr="default", voice="default")
         asr = RuntimeModelResource(