Show conversation title when in the conversation view

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

I want to see what conversation I'm looking at in the CLI without going to /session to view it

### Proposed solution

Either at the top here or the bottom, I'd like to see the name of the conversation. It would be very helpful to context switch between simultaneous conversations

(left side with branch/path redacted)

### Example prompts or workflows

Running simultaneous conversations, whether within one terminal or multiple. It is hard to tell what the active conversation is about without typing /session to see the name.

### Additional context

This could also be a good opportunity to augment the terminal title so I see "Copilot" instead of just "zsh"

從 CLI 對話檢視開始，並將其與 /session 檢視進行比較，後者目前會顯示對話名稱。確定作用中的對話在哪個位置進行渲染，以及終端標題是否屬於同一個進入點。完成的標準是：在檢視作用中的對話時能夠識別它，且任何終端標題變更都與選定的範圍一致。

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