docs: rebuild the v2 documentation around a task-based page tree (#2397)

packages/client/README.md

@@ -21,6 +21,6 @@ TypeScript ≥6.0 no longer auto-includes `@types/*` — add `"types": ["node"]`
 ## Documentation
 
 - **[Repository README](https://github.com/modelcontextprotocol/typescript-sdk#readme)** — overview, package layout, examples
-- **[Client guide](https://github.com/modelcontextprotocol/typescript-sdk/blob/main/docs/client.md)**
+- **[Client guide](https://ts.sdk.modelcontextprotocol.io/v2/clients/connect)** — connecting, calling tools, OAuth, and middleware
 - **[API reference](https://ts.sdk.modelcontextprotocol.io/v2/)**
 - **[MCP specification](https://modelcontextprotocol.io)**

packages/server/README.md

@@ -24,6 +24,7 @@ Optional framework adapters: [`@modelcontextprotocol/express`](https://www.npmjs
 ## Documentation
 
 - **[Repository README](https://github.com/modelcontextprotocol/typescript-sdk#readme)** — overview, package layout, examples
-- **[Server guide](https://github.com/modelcontextprotocol/typescript-sdk/blob/main/docs/server.md)**
+- **[Server guide](https://ts.sdk.modelcontextprotocol.io/v2/servers/tools)** — tools, resources, prompts, and the rest of the server surface
+- **[Serving guide](https://ts.sdk.modelcontextprotocol.io/v2/serving/http)** — stdio, HTTP, the framework adapters, sessions, and authorization
 - **[API reference](https://ts.sdk.modelcontextprotocol.io/v2/)**
 - **[MCP specification](https://modelcontextprotocol.io)**

packages/server/src/server/requestStateCodec.ts

@@ -147,7 +147,7 @@ export function createRequestStateCodec<T = unknown>(options: RequestStateCodecO
     if (subtle === undefined) {
         throw new TypeError(
             'createRequestStateCodec requires the Web Crypto API (globalThis.crypto.subtle); ' +
-                'see https://github.com/modelcontextprotocol/typescript-sdk/blob/main/docs/faq.md for the Node.js polyfill instructions'
+                'see https://ts.sdk.modelcontextprotocol.io/v2/troubleshooting for the Node.js polyfill instructions'
         );
     }