[FEATURE] Better VSCode Terminal Setup Solution

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

For now, run /terminal-setup inside vscode terminal, will append following to shortcuts.json:

    {
        "key": "shift+enter",
        "command": "workbench.action.terminal.sendSequence",
        "args": {
            "text": "\\\r\n"
        },
        "when": "terminalFocus"
    }

but the disavantage is will append \ ant end:

<img width="1440" height="900" alt="Image" src="https://github.com/user-attachments/assets/48d8cf5c-5e42-4062-813d-9829ea1a0969" />

Proposed Solution

better solution:

    {
        "key": "shift+enter",
        "command": "workbench.action.terminal.sendSequence",
        "args": { "text": "\^[\u000A" },
        "when": "terminalFocus"
    },

will get perfect experience:

<img width="1440" height="900" alt="Image" src="https://github.com/user-attachments/assets/ebfe4560-d545-4976-ba60-adb77b6e52f4" />

Alternative Solutions

_No response_

Priority

High - Significant impact on productivity

Feature Category

Interactive mode (TUI)

Use Case Example

_No response_

Additional Context

see https://github.com/anthropics/claude-code/issues/2754#issuecomment-3064554102