I would like to have "credits consumption" stats page, where I can see how mu...

I would like to have "credits consumption" stats page, where I can see how much ai credits I consume over time and more stats on how much different sessions take. So I get more insights into how I spend my credits.

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| Field | Value |
| --- | --- |
| App version | 1.0.18 |
| OS | macOS 15.7.7 |
| Theme | GitHub |
| Path | /chat |
| Tenure | Day 1 |

Start from the /chat experience in the GitHub Copilot app and identify where credit usage and session information are exposed. Done should provide a credits-consumption stats page showing usage over time and comparative consumption across sessions, with the expected metrics and presentation clarified before implementation.

索引モデルが issue の本文から書いたものです。