Alynt Drime Backups Dashboard 0.1.14

Fixed\n\n- Hardened uninstall safety so WordPress-discovered rollback copies exit before touching canonical dashboard state.\n- Preserved dashboard records by default during normal canonical plugin deletion.\n- Required the explicit ALYNT_DRIME_BACKUPS_DASHBOARD_PURGE_DATA_ON_UNINSTALL wp-config.php constant for permanent dashboard-data removal.\n- Documented safe rollback archive placement outside wp-content/plugins.\n\nThis remains a read-only dashboard patch; it adds no remote actions.