Add standalone topology MCP with skill, scopes UI, and opt-in live sync.

Splits canvas/Fabric tools into netx-topology-mcp, documents install and a companion Cursor skill, lets API keys grant ne:write explicitly, and adds optional topology live sync so operators can watch agent drawing without constant polling.

Co-authored-by: Cursor <cursoragent@cursor.com>

mcp.json

@@ -9,6 +9,16 @@
         "PYTHONIOENCODING": "utf-8",
         "PYTHONUTF8": "1"
       }
+    },
+    "netx-topology": {
+      "command": "python",
+      "args": ["-m", "netx_topology_mcp"],
+      "env": {
+        "NETX_API_URL": "http://127.0.0.1:8890",
+        "NETX_LANG": "zh",
+        "PYTHONIOENCODING": "utf-8",
+        "PYTHONUTF8": "1"
+      }
     }
   }
 }