feat(topics): restore topic taxonomy workflow

tests/widget-system/modern-widgets-contract.test.cjs

@@ -11,7 +11,7 @@ test('modern widget schemas expose reference field names and defaults', () => {
   for (const field of ['mini_opt', 'paginate', 'tabs', "'id' => 'cat'", "'id' => 'pay_type'", 'layout_ratio', 'slide_scale', 'm_layout_type', 'm_cover_ratio', 'image_layer', 'image_select']) {
     assert.match(source, new RegExp(field.replace(/[.*+?^${}()|[\]\\]/g, '\\$&')));
   }
-  assert.doesNotMatch(source, /'id' => 'topics'/);
+  assert.match(source, /'id' => 'topics'/);
   assert.match(source, /'热门推荐'.*'orderby' => 'views'/s);
   assert.match(source, /'最近更新'.*'orderby' => 'modified'/s);
   assert.match(source, /'猜你喜欢'.*'orderby' => 'rand'/s);