Feature Request: Support for Recent Models in Copilot CLI

### Describe the feature or problem you'd like to solve

Add functionality in Copilot CLI to list and quickly access recently used models, including version details, so users can switch or re‑use them more efficiently.

### Proposed solution

Add functionality in Copilot CLI to list and quickly access recently used models, including version details, so users can switch or re‑use them more efficiently.

**Motivation**
Currently, users need to manually specify model names or versions each time. This can be cumbersome when working across multiple projects or testing different releases. Having a “recent models” feature would streamline workflows and reduce repetitive typing.

**Proposed Solution**

- Introduce a copilot models recent command to display a list of recently used models.

- Show metadata such as model name, version, and last used timestamp.

- Allow quick switching with copilot use or copilot use .

- Optionally support a configurable limit (e.g., last 5 or 10 models).

### Example prompts or workflows

_No response_

### Additional context

_No response_

該 issue 未指定檔案、測試或進入點。首先定位 Copilot CLI 中現有的模型選取命令處理邏輯，以及模型使用情況的記錄方式。完成標準是實作最近使用模型清單、模型中繼資料、快速選取和可設定的結果數量限制，並涵蓋所要求的工作流程。

由索引模型根據 Issue 內容生成。