docs(examples): index missing server and client examples in README

Several runnable example files were not listed in the README index
tables, leaving them undiscoverable through the canonical entry point:

Server:
- arktypeExample.ts (ArkType / Standard Schema)
- valibotExample.ts (Valibot + @valibot/to-json-schema)
- customProtocolVersion.ts (custom protocol-version fallback)

Client:
- simpleTokenProvider.ts (minimal AuthProvider)
- dualModeAuth.ts (host-managed vs OAuth provider)
- customMethodExample.ts (vendor-prefixed methods + progress)

Adds one row per example to the existing tables. No code changes.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: GopalGB

examples/client/README.md

@@ -36,6 +36,9 @@ Most clients expect a server to be running. Start one from [`../server/README.md
 | Client credentials (M2M)                            | Machine-to-machine OAuth client credentials example.                                      | [`src/simpleClientCredentials.ts`](src/simpleClientCredentials.ts)                         |
 | URL elicitation client                              | Drives URL-mode elicitation flows (sensitive input in a browser).                         | [`src/elicitationUrlExample.ts`](src/elicitationUrlExample.ts)                             |
 | Task interactive client                             | Demonstrates task-based execution + interactive server→client requests.                   | [`src/simpleTaskInteractiveClient.ts`](src/simpleTaskInteractiveClient.ts)                 |
+| Bearer token provider                               | Minimal `AuthProvider` for pre-configured bearer tokens (gateway/proxy patterns).         | [`src/simpleTokenProvider.ts`](src/simpleTokenProvider.ts)                                 |
+| Dual-mode auth                                      | Same `authProvider` option used for host-managed tokens and full OAuth providers.         | [`src/dualModeAuth.ts`](src/dualModeAuth.ts)                                               |
+| Custom (non-spec) method                            | Sends a vendor-prefixed `acme/search` request and receives custom progress notifications. | [`src/customMethodExample.ts`](src/customMethodExample.ts)                                 |
 
 ## URL elicitation example (server + client)
 

examples/server/README.md

@@ -39,6 +39,9 @@ pnpm tsx src/simpleStreamableHttp.ts
 | Task interactive server                   | Task-based execution with interactive server→client requests.                                   | [`src/simpleTaskInteractive.ts`](src/simpleTaskInteractive.ts)                           |
 | Hono Streamable HTTP server               | Streamable HTTP server built with Hono instead of Express.                                      | [`src/honoWebStandardStreamableHttp.ts`](src/honoWebStandardStreamableHttp.ts)           |
 | SSE polling demo server                   | Legacy SSE server intended for polling demos.                                                   | [`src/ssePollingExample.ts`](src/ssePollingExample.ts)                                   |
+| ArkType schema validation                 | Minimal stdio server using ArkType (Standard Schema spec) for tool input schemas.               | [`src/arktypeExample.ts`](src/arktypeExample.ts)                                         |
+| Valibot schema validation                 | Minimal stdio server using Valibot + `@valibot/to-json-schema` for tool input schemas.          | [`src/valibotExample.ts`](src/valibotExample.ts)                                         |
+| Custom protocol version support           | Supports protocol versions not yet shipped in the SDK; first in list is the fallback.           | [`src/customProtocolVersion.ts`](src/customProtocolVersion.ts)                           |
 
 ## OAuth demo flags (Streamable HTTP server)