fix(wiki): proxy topology through public gateway

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

tests/test_wiki_topology_proxy.py

@@ -0,0 +1,29 @@
+import unittest
+from pathlib import Path
+
+
+PROJECT_ROOT = Path(__file__).resolve().parents[1]
+DEMO_PATH = PROJECT_ROOT / "data" / "wiki" / "guanghan_topology_demo.html"
+GHC05_PATH = PROJECT_ROOT / "data" / "wiki" / "guanghan_ghc05_zh.html"
+
+
+class WikiTopologyProxyTests(unittest.TestCase):
+    def test_demo_derives_api_prefix_from_document_url(self):
+        html = DEMO_PATH.read_text(encoding="utf-8")
+
+        self.assertIn("new URL('.', window.location.href).pathname", html)
+        self.assertIn("replace(/\\/$/, '')", html)
+
+    def test_ghc05_embed_uses_public_proxy_instead_of_private_backend(self):
+        html = GHC05_PATH.read_text(encoding="utf-8")
+        public_url = (
+            "http://118.89.192.134:59100/topology/"
+            "guanghan_topology_demo.html?mission=GHC-05"
+        )
+
+        self.assertEqual(html.count(public_url), 2)
+        self.assertNotIn("192.168.195.241:38080", html)
+
+
+if __name__ == "__main__":
+    unittest.main()