refactor: finish MCP SDK v2 migration

scripts/typedoc-plugin-base-sdk-links.mjs

@@ -0,0 +1,16 @@
+/**
+ * Resolve module-local links inherited from the base MCP SDK declarations.
+ *
+ * TypeDoc's externalSymbolLinkMappings handles package-qualified symbols, but
+ * the base SDK writes this particular reference as `index.inputRequired`.
+ */
+
+const BASE_SDK_DOCS = "https://ts.sdk.modelcontextprotocol.io/v2/";
+
+/** @param {import("typedoc").Application} app */
+export function load(app) {
+  app.converter.addUnknownSymbolResolver((ref) => {
+    const name = ref.symbolReference?.path?.map((part) => part.path).join(".");
+    if (name === "index.inputRequired") return BASE_SDK_DOCS;
+  });
+}