Permission prompt: split "Yes, always" into project-scope vs user-scope (all projects)

[barak107]

Feature request

Today the permission popup offers three choices:

1. Yes
2. Yes, always
3. No

"Yes, always" writes the allow rule to project scope (`.claude/settings.local.json`). There's no way to approve an action globally for all projects from the popup itself — the only workaround is to manually cut the rule from the project's settings file and paste it into `~/.claude/settings.json`.

Proposed change

Split option 2 into two:

1. Yes
2. Yes, always in this project
3. Yes, always for this user (all projects)
4. No

This lets users pick the correct scope at approval time instead of hand-editing settings files afterward.