refactor: finish MCP SDK v2 migration

examples/integration-server/server.ts

@@ -3,11 +3,11 @@ import {
   registerAppTool,
   RESOURCE_MIME_TYPE,
 } from "@modelcontextprotocol/ext-apps/server";
-import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
-import type {
-  CallToolResult,
-  ReadResourceResult,
-} from "@modelcontextprotocol/sdk/types.js";
+import {
+  McpServer,
+  type CallToolResult,
+  type ReadResourceResult,
+} from "@modelcontextprotocol/server";
 import fs from "node:fs/promises";
 import path from "node:path";
 import { z } from "zod";
@@ -33,7 +33,7 @@ export function createServer(): McpServer {
     {
       title: "Get Time",
       description: "Returns the current server time.",
-      inputSchema: {},
+      inputSchema: z.object({}),
       outputSchema: z.object({
         time: z.string(),
       }),
@@ -72,7 +72,7 @@ export function createServer(): McpServer {
   );
 
   // Sample downloadable resource — used to demo ResourceLink in ui/download-file
-  server.resource(
+  server.registerResource(
     SAMPLE_DOWNLOAD_URI,
     SAMPLE_DOWNLOAD_URI,
     {