[Bug]:

在windows11 上安装qwenpaw2.2.0，使用qwen-35B-A3B-FP8模型，对话无故结束

Reproduce on Windows 11 with QwenPaw v2.2.0 and the qwen-35B-A3B-FP8 model, then capture full logs when the chat ends unexpectedly. Start from the Windows install/run instructions and the launch command used to start that model, since no files or tests are named in the issue. Next, trace the chat/session flow around model loading and stop conditions, and compare with another model/version to isolate scope. Done when repeated runs no longer terminate mid-conversation and behavior is consistently stable.

索引モデルが issue の本文から書いたものです。