Bug: /context command returns `used` field always 0, but normal prompt chat works correctly

[Thereisnospon]

Version: 0.29.1

When using the /context command, the used field in the response is always 0.
During normal prompt chat, the used field returns the correct value as expected.

[Thereisnospon]

@Mng-dev-ai Could you please help check this issue?
In version 0.29.1, the used field returned by the /context command is always 0, while it works correctly in normal prompt chat.
Thanks a lot.