feat: add deterministic message interaction stages

backend/tests/test_workflow_v3.py

@@ -55,6 +55,20 @@ def valid_graph():
 
 
 class WorkflowGraphTests(unittest.TestCase):
+    def test_workflow_removes_assistant_and_start_greetings(self):
+        body = AssistantUpsert(
+            name="无开场白工作流",
+            type="workflow",
+            greeting="旧助手级开场白",
+            graph=valid_graph(),
+        )
+        body.graph["nodes"][0]["data"]["greeting"] = "旧 Start 开场白"
+
+        normalized = normalize_graph(body.graph)
+
+        self.assertEqual(body.greeting, "")
+        self.assertNotIn("greeting", normalized["nodes"][0]["data"])
+
     def test_revision_pins_the_normalized_workflow_snapshot(self):
         first = WorkflowEngine(valid_graph())
         same_graph = deepcopy(valid_graph())
@@ -147,6 +161,7 @@ class WorkflowGraphTests(unittest.TestCase):
         )
         self.assertEqual(actions["legacy_none"]["resultAssignments"], {})
         self.assertEqual(actions["legacy_none"]["userInputPolicy"], "queue")
+        self.assertNotIn("speech", actions["legacy_none"])
 
     def test_action_advanced_settings_are_validated(self):
         graph = valid_graph()
@@ -167,6 +182,46 @@ class WorkflowGraphTests(unittest.TestCase):
         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_message_defaults_and_validation(self):
+        graph = valid_graph()
+        graph["nodes"].append(
+            {
+                "id": "message",
+                "type": "message",
+                "data": {"speech": "请确认重要信息"},
+            }
+        )
+        normalized = normalize_graph(graph)
+        message = next(
+            node for node in normalized["nodes"] if node["type"] == "message"
+        )
+        self.assertFalse(message["data"]["showMessage"])
+        self.assertFalse(message["data"]["requireConfirmation"])
+        self.assertEqual(message["data"]["confirmLabel"], "确认")
+
+        message["data"].update(
+            {
+                "speech": "",
+                "showMessage": True,
+                "title": "重要提示",
+                "message": "",
+                "confirmLabel": "确认",
+                "requireConfirmation": True,
+            }
+        )
+        errors = validate_graph(normalized)
+        self.assertTrue(any("弹窗消息必须为" in error for error in errors))
+
+        message["data"].update(
+            {
+                "speech": "请确认",
+                "showMessage": False,
+                "requireConfirmation": True,
+            }
+        )
+        errors = validate_graph(normalized)
+        self.assertTrue(any("等待确认时必须显示弹窗" 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(