[Bug] Anthropic API Error: HTTP 403 Missing Scope for MCP Design Endpoint

Bug Description
"Max account OAuth token gets HTTP 403 'missing scope' from api.anthropic.com/v1/design/mcp; works in the app, first-party MCP so Reconnect never re-consents; worked earlier today, broke after re-login." Also, when I do /login (after logging out on the web... I tap Login with Google... and the Google 'select account' modal appears, but the claude page changes the the "Authorize" page... WITHOUT me even finishing the Google Auth process.

Environment Info

• Platform: win32
• Terminal: windows-terminal
• Version: 2.1.236
• Feedback ID: 85709889-08e9-48f7-bbb4-6cdaf179168d

Errors

[Failed to reconnect to claude-design: api.anthropic.com rejected your claude.ai login (HTTP 403). Your token may be missing a scope this server needs — run /login and retry, or check that your account has access.]