[VS Code Extension] Option to hide effort level indicator in input box

Feature Request: Setting to hide the effort level indicator

Description

The effort level indicator (three dots showing Low / Medium / High) appears in the VS Code Claude Code extension input area whenever the cursor is active in the text box — whether you're actively typing or just have focus there.

Problem

There is currently no way to hide this UI element:

• /statusline commands don't work in the VS Code extension context
• settings.json has no statusLine field that can be cleared or set to hide it

For users who set their effort level once and leave it, the indicator is a persistent minor visual distraction with no opt-out.

Request

Add a VS Code extension setting — e.g., claude.showEffortIndicator: false — or extend support for the existing statusLine config so users can suppress this element from the input box UI.

Why it matters

It's a small quality-of-life improvement. Users who actively switch effort levels can keep it on (default). Users who don't need the constant reminder can turn it off. Low implementation cost, reduces visual noise for a subset of users who find it distracting.