Directories listed in allowed_directories in ~/.copilot/permissions-config.json do not suppress the "path outside your allowed directory list" prompt for shell commands.

Describe the bug

Directories listed in allowed_directories in ~/.copilot/permissions-config.json do not suppress the "path outside your allowed directory list" prompt for shell commands. /add-dir with the identical path fixes it for the session.

Startup log says it loaded:
[INFO] permissions::api_orchestrator] Applied persisted allowed directories {"count":2,"location_key":"..."} 
Probable cause: in app.js, addAdditionalDirectory() is only called inside the paths.add handler. hydrate_location_permission_directories applies persisted dirs to the native permission service but never performs that sync, so the path gate used for shell commands doesn't see them.
Secondary: the prompt's "Yes, and add these directories to the allowed list" option maps to {kind:"approve-for-session"} — the wording implies persistence it doesn't have.

Affected version

GitHub Copilot CLI 1.0.79.

Steps to reproduce the behavior

Repro: add an absolute dir to allowed_directories under a location key; start a session whose git root is that key; run a shell command reading a file under that dir → prompt appears. Run /add-dir  → no more prompts.

Expected behavior

No response

Additional context

No response

从 app.js 开始，将 paths.add 处理程序中的 addAdditionalDirectory() 与 hydrate_location_permission_directories 以及持久化目录的启动路径进行比较。使用绝对的 allowed_directories 条目复现，然后运行一个读取其中某个文件的 shell 命令。完成的标准是：持久化目录像 /add-dir 一样抑制路径提示，并且提示措辞准确反映仅限当前会话的批准。