fix: 修复插件分类查询并保留返回状态

- 统一按插件名称进行模糊查询并支持分类筛选

- 恢复插件列表与工具编辑的页码、分类和搜索条件

easyflow-ui-admin/app/src/router/__tests__/detail-return-navigation.test.ts

@@ -47,12 +47,19 @@ describe('detail return navigation', () => {
 
   it('returns plugin tool editing to its plugin tool list with a safe fallback', () => {
     const editSource = readViewSource('ai/plugin/PluginToolEdit.vue');
+    const toolsSource = readViewSource('ai/plugin/PluginTools.vue');
+    const pluginListSource = readViewSource('ai/plugin/Plugin.vue');
     const listSource = readViewSource('ai/plugin/PluginToolTable.vue');
 
     expect(editSource).not.toMatch(/router\.(?:back|go)\s*\(/);
     expect(editSource).toContain("path: '/ai/plugin/tools'");
     expect(editSource).toContain("path: '/ai/plugin'");
+    expect(editSource).toContain('buildPluginToolsRouteQueryFromEdit');
+    expect(toolsSource).toContain('parsePluginToolsReturnState');
+    expect(toolsSource).toContain('buildPluginListRouteQuery');
+    expect(pluginListSource).toContain('buildPluginToolsReturnQuery');
     expect(listSource).toContain('pluginId: props.pluginId');
+    expect(listSource).toContain('...route.query');
   });
 
   it('returns execution steps to the filtered execution record list', () => {