Bump @anthropic-ai/sdk from 0.80.0 to 0.81.0 in /chat-lib (#4915)

Bumps [@anthropic-ai/sdk](https://github.com/anthropics/anthropic-sdk-typescript) from 0.80.0 to 0.81.0.
- [Release notes](https://github.com/anthropics/anthropic-sdk-typescript/releases)
- [Changelog](https://github.com/anthropics/anthropic-sdk-typescript/blob/main/CHANGELOG.md)
- [Commits](anthropics/anthropic-sdk-typescript@sdk-v0.80.0...sdk-v0.81.0)

---
updated-dependencies:
- dependency-name: "@anthropic-ai/sdk"
  dependency-version: 0.81.0
  dependency-type: direct:development
...

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Author: dependabot[bot]

chat-lib/package-lock.json

@@ -31,7 +31,7 @@
 		"yaml": "^2.8.0"
 	},
 	"devDependencies": {
-		"@anthropic-ai/sdk": "^0.80.0",
+		"@anthropic-ai/sdk": "^0.81.0",
 		"@octokit/types": "^14.1.0",
 		"@types/node": "^22.16.3",
 		"@types/vscode": "^1.109.0",