Surface how many characters / lines were added by AI

[alexdima]

It would be nice if I could see in a quick, visual way:

• how much AI I used today (characters, lines)
• how much AI contributed to the code I wrote today
• (stretch) how much time AI saved me today
• (stretch) reviewing exactly what AI did for me today.

I'm imagining something like an energy class indicator or maybe like Apple's activity circles.

We could render something in the status bar or have an entry in the Copilot menu in the titlebar and that could open an editor showing more detailed stats, like the last 100 completions I accepted, etc.

---

---

---

[hediet]

First iteration:

"editor.aiStats.enabled": true,

I created #258215 to track the dashboard.