refactor: 重构 engine 模块代码，使用 sandbox.js 解决 iframe 频繁 append 导致的性能问题

 - todo: 后续需统一 nodejs 与 browser 端能力，目前有差异

Author: boyongjiong

packages/engine/CHANGELOG.md

@@ -1,11 +1,13 @@
-import Engine from '../src/index';
+import { describe, expect, test } from '@jest/globals'
+import Engine from '../src/index'
 
 describe('@logicflow/engine', () => {
   test('Execution Process Completed, Returning Data Containing executionId', async () => {
     // TODO: context在初始化engine时传入
     const engine = new Engine({
       context: {},
-    });
+      debug: true,
+    })
     const flowData = {
       /**
        * node1 |--> node2
@@ -19,24 +21,24 @@ describe('@logicflow/engine', () => {
           {
             id: 'node2',
             type: 'TaskNode',
-          }
+          },
         ],
         edges: [
           {
             id: 'edge1',
             sourceNodeId: 'node1',
             targetNodeId: 'node2',
-          }
-        ]
+          },
+        ],
       },
       globalData: {},
     }
-    const flowModel = engine.load(flowData);
-    const result = await engine.execute();
-    expect(engine).toBeInstanceOf(Engine);
-    expect(flowModel.nodeConfigMap.size).toBe(flowData.graphData.nodes.length);
-    expect(result).toHaveProperty('executionId');
-    expect(result.status).toBe('completed');
-    expect(result.nodeId).toEqual('node2');
-  });
-});
+    const flowModel = engine.load(flowData)
+    const result = await engine.execute()
+    expect(engine).toBeInstanceOf(Engine)
+    expect(flowModel.nodeConfigMap.size).toBe(flowData.graphData.nodes.length)
+    expect(result).toHaveProperty('executionId')
+    expect(result.status).toBe('completed')
+    expect(result.nodeId).toEqual('node2')
+  })
+})