add Hypermode Graph MCP doc (#146)

* add Hypermode Graph MCP doc

* fix formatting

* updates

* Update graphs/graph-mcp.mdx

Co-authored-by: Copilot <[email protected]>

* Update styles/config/vocabularies/general/accept.txt

Co-authored-by: Copilot <[email protected]>

* add local mcp notes + example tool query and response.

* headers

---------

Co-authored-by: Copilot <[email protected]>
Co-authored-by: danstarns <[email protected]>

Author: 3 people

docs.json

@@ -59,7 +59,8 @@
               "graphs/connect",
               "graphs/manage-schema",
               "graphs/manage-data",
-              "graphs/manage-graph"
+              "graphs/manage-graph",
+              "graphs/graph-mcp"
             ]
           },
           {