Why is cut-off length limited to 65536?

[lemon-prog123]

Reminder

• I have read the README and searched the existing issues.

System Info

No any extra print.

Reproduction

As the above.

Expected behavior

是因为系统限制还是单纯的默认值导致webui只能选择最大65536，期望能够选择达到128K

Others

No