[FEATURE] Usage limits display in VSCode extension / status bar

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

Problem
There's no way to monitor Claude Code usage limits (the 3 progress bars shown on claude.ai/settings/usage) without leaving the IDE. This breaks flow when you want a quick check on remaining quota.

Proposed Solution

Proposed solution
Add a usage indicator to the VSCode extension, ideally in one of these forms:

• Status bar item showing current session usage % (e.g. Claude: 42%)
• Sidebar panel with the same 3 progress bars as claude.ai/settings/usage
• Hover tooltip on the status bar item with breakdown

Alternative Solutions

_No response_

Priority

High - Significant impact on productivity

Feature Category

Developer tools/SDK

Use Case Example

Why it matters
Developers using Claude Code heavily want to stay in the IDE. Switching to a browser tab just to check quota is friction that adds up. A lightweight status bar indicator would significantly improve the workflow.

Additional Context

_No response_