[Feature Request] Support for upgrading API rate limits within Claude Code CLI

Bug Description
cant upgrade my account from 5x to 20x max

Environment Info

• Platform: darwin
• Terminal: ghostty
• Version: 2.1.139
• Feedback ID: b7b3eccb-9087-4d21-bdf3-0e4289a8ac01

Errors

[{"error":"Error: NON-FATAL: Lock acquisition failed for /Users/tanho/.local/share/claude/versions/2.1.139 (expected in multi-process scenarios)\n    at z16 (/$bunfs/root/src/entrypoints/cli.js:2662:2257)\n    at tRH (/$bunfs/root/src/entrypoints/cli.js:2662:1337)\n    at processTicksAndRejections (native:7:39)","timestamp":"2026-05-12T05:10:03.840Z"}]