[FEATURE] Need audio feedback when agent is done in vscode extension

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

Need audio feedback when agent is done in vscode extension

Proposed Solution

Make audio feedback setting

Alternative Solutions

_No response_

Priority

Critical - Blocking my work

Feature Category

CLI commands and flags

Use Case Example

_No response_

Additional Context

_No response_