Add confirmation before permanently deleting chats in VS Code

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

It is easy to accidentally delete a chat in VS Code because the delete button is too close to the rename chat action. A misclick can permanently remove important context and chat history.

Proposed Solution

Show a confirmation dialog before deleting a chat, clearly warning that deletion is permanent and asking the user to confirm or cancel.

Alternative Solutions

_No response_

Priority

High - Significant impact on productivity

Feature Category

Interactive mode (TUI)

Use Case Example

_No response_

Additional Context

_No response_