去掉MCP框架，重构

api/app/core/rag/graphrag/general/leiden.py

@@ -8,11 +8,12 @@ Reference:
 import logging
 import html
 from typing import Any, cast
-from graspologic.partition import hierarchical_leiden
-from graspologic.utils import largest_connected_component
+# from graspologic.partition import hierarchical_leiden
+# from graspologic.utils import largest_connected_component
 import networkx as nx
 from networkx import is_empty
-
+hierarchical_leiden=''
+largest_connected_component=''
 
 def _stabilize_graph(graph: nx.Graph) -> nx.Graph:
     """Ensure an undirected graph with the same relationships will always be read the same way."""