/add-dir should support passing a directory argument directly, and fix pasted paths being modified in the input box

Expected Behavior

I expect the ‎/add-dir command to support passing a directory path directly, for example:

/add-dir "/Users/david/Projects/caonima"

When a directory argument is provided, Command Code should add that directory directly, instead of always need to opening the interactive add-dir UI

In addition, in the existing add-dir UI, the input box should accept pasted directory paths as-is, without adding any extra characters before or after the pasted text.

Actual Behavior

Right now, ‎/add-dir does not respect a directory argument.

When I paste a directory path into the add-dir input box, the pasted text gets modified: some extra characters (e.g. something like ‎~200 or similar) are added to the beginning and the end of the path.

Command Code Version

0.25.7

Operating System

macOS

Terminal/IDE

WarpTerminal

Shell

zsh

Additional context

No response

从 /add-dir 命令入口点和现有的 add-dir 输入 UI 开始。检查命令参数的处理方式，以及粘贴路径的处理方式。完成的标准是：提供的目录会被直接添加，而粘贴的路径在输入框中保持不变。