fix(wiki): use Wiki.js navigation on GHC-05

Co-Authored-By: OpenAI Codex <codex@openai.com>

tests/test_wiki_topology_proxy.py

@@ -28,8 +28,7 @@ class WikiTopologyProxyTests(unittest.TestCase):
         html = GHC05_PATH.read_text(encoding="utf-8")
 
         self.assertEqual(html.count('<h1 id="top">'), 1)
-        self.assertEqual(html.count('<nav class="toc"'), 1)
-        self.assertIn('aria-label="条目目录"', html)
+        self.assertNotIn('<nav class="toc"', html)
         self.assertIn("body:has(.wiki-article) .page-header-section", html)
         self.assertIn(".wiki-article h2 { clear: none; overflow: hidden;", html)
         self.assertIn('class="infobox-label"', html)