fix(graph): make graph non-singleton, proper cleanup, fix radial

Jacky Zhao

2025-03-10 23df17233da3f16db5166cf8a05b2089bd1f006a

 docs/advanced/making plugins.md

@@ -99,8 +99,6 @@
            },
          ],
        }
      } else {
        return {}
      }
    },
  }