GitHub Copilot keeps running deleted Autopilot sessions in the background.

GitHub Copilot keeps running deleted Autopilot sessions in the background. The deleted agents still show activity and send messages to other agents. The app respawns new Copilot CLI worker processes after I stop or delete them. This may be consuming my paid AI credits without my permission. Please cancel every server-side task linked to these deleted sessions, stop deleted agents from respawning or messaging other sessions, and refund any AI credits used after deletion.

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| Field | Value |
| --- | --- |
| App version | 1.1.10 |
| OS | macOS 26.6.0 |
| Theme | GitHub |
| Path | /chat |
| Tenure | Week 14 |

首先在应用版本 1.1.10 的 /chat 体验中复现该问题，检查已删除的 Autopilot 会话是否仍会继续活动或重新生成 Copilot CLI worker。跟踪已删除会话在客户端和服务器行为中的生命周期；完成标准是已删除的会话停止所有任务和消息，不再重新生成 worker，并处理删除后的 AI-credit 使用情况。

由索引模型根据 Issue 内容生成。