Release 0.11.0 — surface sessionId on ACP Claude prompt response

Bumps version from 0.10.1 → 0.11.0 (minor — additive feature) and
adds the CHANGELOG entry covering the sessionId surfacing landed in
3f5f788.

3008 tests, 0 failures.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Author: azmaveth

CHANGELOG.md

@@ -5,6 +5,11 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.11.0] - 2026-06-05
+
+### Added
+- **ACP Claude adapter — `sessionId` on prompt response result** — `ExMCP.ACP.Adapters.Claude` now includes `"sessionId"` in the prompt response result map when `state.session_id` is non-nil. The field sits alongside the existing optional `"thinking"` blocks and is omitted entirely when no session id is available, so downstream consumers can rely on `Map.has_key?(result, "sessionId")` as an absence signal. Backwards-compatible — callers that ignore it keep working unchanged. Useful for callers that need to correlate a prompt response with the underlying Claude SDK session, drive `--resume` themselves, or attach the session id to audit / telemetry.
+
 ## [0.10.1] - 2026-05-29
 
 ### Fixed

mix.exs

@@ -1,7 +1,7 @@
 defmodule ExMCP.MixProject do
   use Mix.Project
 
-  @version "0.10.1"
+  @version "0.11.0"
   @github_url "https://github.com/azmaveth/ex_mcp"
 
   def project do