## Why
Security reminder requests need to use app-server's active authentication and HTTP runtime, with results bound to the login that fetched them.
## What changed
- Add `account/securitySetup/read`, returning an optional notice with account and user IDs, plus generated protocol schemas and bindings.
- Fetch reminders in app-server only for a matching saved ChatGPT login. Return `notice: null` for ineligible, unavailable, or timed-out reads, and discard results when the login changes during the request.
- Route TUI reminder reads through the new method while retaining notice validation and identity checks. Unsupported servers produce no reminder.
## Testing
Add coverage for shared runtime use across restarts, ineligible authentication modes, and login changes during a fetch. Update TUI coverage for unavailable, unsupported, and mismatched notices.
GitOrigin-RevId: 426fee7ce98df17970957c06876881bc5b005196
