[Requests and ideas] The copilot app is completely missing a status bar or anything to show how ma...

**Mood:** 😊
**Category:** Requests and ideas

The copilot app is completely missing a status bar or anything to show how many credits you've used and how many are remaining. In a consumption billing world, this is critical. This should be a bottom sidebar, similar to how it's rendered in VS Code.

---
| Field | Value |
| --- | --- |
| App version | 0.2.24 |
| OS | macOS 26.5.0 |
| Theme | GitHub |
| Path | /chat |
| Tenure | Day 3 (Week 1) |

从 /chat 屏幕开始，检查应用目前如何呈现额度或账单信息。确定底部状态栏适合放置的位置，以及有哪些使用量数据可用；完成标准是界面在类似 VS Code 的底部区域显示已使用和剩余的额度。

由索引模型根据 Issue 内容生成。