[BUG] VS Code extension shows identical usage stats across different accounts in separate windows

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

Two VS Code windows authenticated with different Claude accounts display identical usage percentages. Auth info (email, plan, org) is correctly shown per account, but usage numbers are the same in both windows.

Window 1: user1@company.com / Org: Company X / Plan: Claude team
Window 2: user2@gmail.com / no org / Plan: Claude max

Both show: Session (5hr) 26%, Weekly (7 day) 48%, Weekly Sonnet 0%

What Should Happen?

Each window should display the actual usage for its own authenticated account independently.

Error Messages/Logs

No errors. The panel renders without issues — usage numbers are just identical across both accounts.

Steps to Reproduce

1. Have two separate Claude accounts (different emails, different plans)
2. Open two VS Code windows with different projects
3. Authenticate each window with a different account (verify correct email/plan is shown)
4. Open "Account & Usage" panel in both windows
5. Observe that Session, Weekly, and Weekly Sonnet percentages are identical

Claude Model

Other

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.92

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

VS Code integrated terminal

Additional Information

Usage on claude.ai is correct per account — issue is isolated to the VS Code extension