- Add plogical/phpmyadmin_utils.ensure_phpmyadmin_signin_bridge: restore
phpmyadminsignin.php and tmp/ if missing (fixes 404 on /phpmyadmin/phpmyadminsignin.php).
- Call from databases phpMyAdmin page, fetchDetailsPHPMYAdmin, install, and upgrade PMA paths.
- install/upgrade: use makedirs(..., exist_ok=True) for phpmyadmin/tmp instead of mkdir.
- pluginInstaller: run migrate when migrations/ contains modules OR enable_migrations;
use CyberCP venv python; --noinput for migrate; log non-zero exits.