[BUG] OAuth tokens not passed to API - "has Authorization header: false

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?

Title: OAuth tokens not passed to API - "has Authorization header: false"

Environment:

• Extension version: 2.1.29
• OS: Windows
• Account: Max plan subscriber

Issue:
OAuth login succeeds and tokens are saved to ~/.claude/.credentials.json,
but the Authorization header is NOT being included in API requests.

Debug log shows:
[API:request] Creating client, ANTHROPIC_CUSTOM_HEADERS present: false, has Authorization header: false

Also seeing: ReferenceError: Bun is not defined

Expected: OAuth access token should be passed in Authorization header
Actual: Authorization header is false/missing

What Should Happen?

i have purchased max plan , it not authenticating my subcription in VS code extension

Error Messages/Logs

Steps to Reproduce

Steps to reproduce:

1. Install Claude Code VS Code extension v2.1.29 on Windows
2. Login via OAuth with claude.ai account (Max plan)
3. Login succeeds, tokens saved to ~/.claude/.credentials.json
4. Try to use extension - fails with 401 / "Not authenticated"

Expected: OAuth access token should be passed in Authorization header
Actual: Authorization header is missing from requests

Workaround found: Manually setting subscriptionType: "max" in credentials file

Claude Model

Opus

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

v2.1.29

Platform

Other

Operating System

Windows

Terminal/Shell

VS Code integrated terminal

Additional Information

_No response_