Drop stale answers with the library copy's rule: an answer asked before its account's copy was deleted is never written

Each read takes an answer order (nextCloudLibraryAnswerOrder) when it is
asked, and the store drops a write older than its scope's last
deleteAccount, as #326 does for the library copy. Replaces the write grant.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
95edd75bf3Dara Adedeji committed on 10/18/2026, 6:56:25 AMparent57b2108
6 files changedLine totals unavailable