Claude model is unavailable in CLIProxyAPIPlus with Github Copilot Pro subscription

[LiCodex22]

Is it a request payload issue?
[ ] Yes, this is a request payload issue. I am using a client/cURL to send a request payload, but I received an unexpected error.
[ x ] No, it's another issue.

If it's a request payload issue, you MUST know
Our team doesn't have any GODs or ORACLEs or MIND READERs. Please make sure to attach the request log or curl payload.

Describe the bug
A clear and concise description of what the bug is.
The Copilot Pro subscription allow selecting the Claude model in VS Code (p1), but the Claude model is unavailable in CLIProxyAPIPlus (p2)?

CLI Type
What type of CLI account do you use? (gemini-cli, gemini, codex, claude code or openai-compatibility)
claude code

Model Name
What model are you using? (example: gemini-2.5-pro, claude-sonnet-4-20250514, gpt-5, etc.)
claude-sonnet-4.6

LLM Client
What LLM Client are you using? (example: roo-code, cline, claude code, etc.)
claude code

Request Information
The best way is to paste the cURL command of the HTTP request here.
Alternatively, you can set request-log: true in the config.yaml file and then upload the detailed log file.

Expected behavior
A clear and concise description of what you expected to happen.

Screenshots
If applicable, add screenshots to help explain your problem.

OS Type

• OS: win
• Version 6.8.53-0-plus

Additional context
Add any other context about the problem here.