chore(main): release 0.81.0 (#1156)

🤖 I have created a release *beep* *boop*
---


##
[0.81.0](https://github.com/agentclientprotocol/claude-agent-acp/compare/v0.80.0...v0.81.0)
(2026-09-22)


### Features

* **deps:** update Claude SDK
([#1157](https://github.com/agentclientprotocol/claude-agent-acp/issues/1157))
([eb989e9](eb989e93f4))
* Send experimental session notices for live advisories
([#1155](https://github.com/agentclientprotocol/claude-agent-acp/issues/1155))
([79851b8](79851b8668))

---
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Co-authored-by: acp-release-bot[bot] <246668977+acp-release-bot[bot]@users.noreply.github.com>

package.json

@@ -3,7 +3,7 @@
   "publishConfig": {
     "access": "public"
   },
-  "version": "0.80.0",
+  "version": "0.81.0",
   "description": "An ACP-compatible coding agent powered by the Claude Agent SDK (TypeScript)",
   "main": "dist/lib.js",
   "types": "dist/lib.d.ts",