Merge pull request #6666 from Aqr-K/feat/plugin-instance-target-enablement

feat(plugin): 插件实例默认调用目标与启停，未指定实例时不再兜底取第一个

tests/test_workflow_invoke_plugin.py

@@ -52,3 +52,73 @@ def test_invoke_plugin_keeps_legacy_action_id_fallback() -> None:
     _, result = _execute_with_action({"action_id": "cleanup"})
 
     assert result.content == "before"
+
+
+def test_invoke_plugin_dispatches_to_resolved_default_target() -> None:
+    """插件 ID 有分身时，动作按裁决出的默认调用目标查询动作，而不是原样使用插件 ID。
+
+    这是历史工作流在源插件本体停用、仅分身启用后仍能继续工作的关键：存量工作流
+    保存的还是物理插件 ID，必须经过默认调用目标裁决才能落到实际在跑的分身上。
+    """
+    context = ActionContext(content="before")
+    action = {"id": "cleanup"}
+    action_fn = Mock(return_value=(True, context))
+    action["func"] = action_fn
+    plugin_manager = Mock()
+    plugin_manager.resolve_plugin_call_target.return_value = "plugin-a-clone"
+    plugin_manager.get_plugin_actions.return_value = [
+        {"plugin_id": "plugin-a-clone", "actions": [action]}
+    ]
+
+    with patch(
+        "app.workflow.actions.get_configured_system_config",
+        return_value=Mock(),
+    ), patch(
+        "app.workflow.actions.invoke_plugin.get_plugin_manager",
+        return_value=plugin_manager,
+    ):
+        action_runner = InvokePluginAction("invoke")
+        action_runner.execute(
+            workflow_id=1,
+            params={
+                "plugin_id": "plugin-a",
+                "action_id": "cleanup",
+                "action_params": {},
+            },
+            context=context,
+        )
+
+    plugin_manager.resolve_plugin_call_target.assert_called_once_with("plugin-a")
+    plugin_manager.get_plugin_actions.assert_called_once_with("plugin-a-clone")
+    assert action_runner.success is True
+
+
+def test_invoke_plugin_fails_gracefully_when_default_target_undecidable() -> None:
+    """裁决报错（未设默认目标／默认目标已停用）时动作失败但不抛出，不误执行任何实例。"""
+    context = ActionContext(content="before")
+    plugin_manager = Mock()
+    plugin_manager.resolve_plugin_call_target.side_effect = LookupError(
+        "插件 plugin-a 未设置默认实例，调用必须显式指定实例；可选实例：a（已启用）、b（已启用）"
+    )
+
+    with patch(
+        "app.workflow.actions.get_configured_system_config",
+        return_value=Mock(),
+    ), patch(
+        "app.workflow.actions.invoke_plugin.get_plugin_manager",
+        return_value=plugin_manager,
+    ):
+        action_runner = InvokePluginAction("invoke")
+        result = action_runner.execute(
+            workflow_id=1,
+            params={
+                "plugin_id": "plugin-a",
+                "action_id": "cleanup",
+                "action_params": {},
+            },
+            context=context,
+        )
+
+    plugin_manager.get_plugin_actions.assert_not_called()
+    assert action_runner.success is False
+    assert result.content == "before"