[FEATURE] Control where "Always allow" permissions are persisted

Preflight Checklist

• [x] I have searched existing requests and this feature hasn't been requested yet
• [x] This is a single feature request (not multiple features)

Problem Statement

Currently, "Always allow" in the CLI permission prompt always writes to the repo-local .claude/settings.local.json. There is no way to redirect this to the global ~/.claude/settings.json.

Proposed Solution

A flag or setting (e.g. --permissions-scope=global or a config option) to control this behavior would be useful for users who want to maintain a single global permission config without repo-local state (like allowing bash read-only commands).

Alternative Solutions

_No response_

Priority

Medium - Would be very helpful

Feature Category

CLI commands and flags

Use Case Example

_No response_

Additional Context

_No response_