fix: 保留工作流列表返回状态

- 记录页码、分类和搜索条件并同步到路由

- 从工作流设计页返回时恢复原列表位置

easyflow-ui-admin/app/src/components/page/PageData.test.ts

@@ -5,6 +5,40 @@ import { describe, expect, it, vi } from 'vitest';
 import PageData from './PageData.vue';
 
 describe('page data recovery', () => {
+  it('loads the restored page and query without requesting the first page', async () => {
+    const get = vi
+      .fn()
+      .mockResolvedValue({ data: { records: [], totalRow: 30 } });
+    const wrapper = mount(PageData, {
+      global: {
+        directives: { loading: {} },
+      },
+      props: {
+        initialPageNumber: 3,
+        initialQueryParams: { categoryId: '7', title: '月报' },
+        pageSize: 18,
+        pageUrl: '/page',
+        requestClient: { get },
+      },
+    });
+
+    await flushPromises();
+
+    expect(get).toHaveBeenCalledTimes(1);
+    expect(get).toHaveBeenCalledWith('/page', {
+      params: {
+        categoryId: '7',
+        pageNumber: 3,
+        pageSize: 18,
+        title: '月报',
+      },
+    });
+    expect((wrapper.vm as any).getPageState()).toEqual({
+      pageNumber: 3,
+      pageSize: 18,
+    });
+  });
+
   it('shows a retry action after a page request fails', async () => {
     const get = vi
       .fn()