Kimi K2.7 Code is not available in Pro subscription

### Describe the bug

- I have a Copilot Pro subscription;
- The GitHub policy says that Kimi Code 2.7 (model `kimi-k2.7-code`) is available for Pro subscription.
- In fact, it is listed in the `Blocked / Disabled` list. Here is the screenshot.

Copilot CLI version:

Copilot Pro [availability](https://github.blog/changelog/2026-07-01-kimi-k2-7-is-now-available-in-github-copilot/):

### Affected version

Copilot CLI 1.0.68

### Steps to reproduce the behavior

1. Start Copilot;
2. Type `/model` and press Enter;
3. A screen with `Available` models is displayed and the list of models -- no `kimi-k2.7-code` model is displayed.
4. Press `Tab` key to switch to `Blocked / Disabled` -- `kimi-k2.7-code` is listed there (see screenshot)

### Expected behavior

_No response_

### Additional context

Run in Poweshell following command:
```powershell
copilot -p "Say OK" --model "Kimi-K2.7-Code"
```

Response:
```
Error: Model "Kimi-K2.7-Code" from --model flag is not available.
```

在 Copilot CLI 1.0.68 中打开 /model 并检查 Available 和 Blocked / Disabled 列表，以复现该问题，然后运行文档中记录的 PowerShell 命令，并使用 --model "Kimi-K2.7-Code"。当该模型对 Copilot Pro 用户可用，且该命令不再报告模型不可用时，即表示完成。

由索引模型根据 Issue 内容生成。