fix: add missing remote DB migrations and deploy-migrate recipe

Four ALTER TABLE / CREATE TABLE statements were applied locally but never
deployed to the remote production database, causing:

- acces.php → 500: share_links.is_archived missing (ShareLink::listActive/listArchived)
- parametres.php → 500: smtp_settings.notify_email missing (SmtpRelay::getSettings)
- /tfe?id=N → redirect-to-home: thesis_files.sort_order missing (getThesisFiles ORDER BY)
- admin_audit_log table missing (AdminLogger::insertDb, best-effort but noisy)

Adds four pending migrations (008–011) covering all missing schema changes.
Adds 'deploy-migrate' just recipe to run migrations on the remote after deploy.

justfile

@@ -60,6 +60,11 @@ deploy:
         app/ xamxam:/var/www/xamxam/
     ssh xamxam "mkdir -p /var/www/xamxam/var/{cache,logs,tmp}"
 
+[group('deploy')]
+deploy-migrate:
+    # Run pending DB migrations on the remote production database
+    ssh xamxam "cd /var/www/xamxam && php migrations/run.php /var/www/xamxam/storage/xamxam.db"
+
 [group('deploy')]
 deploy-db:
     @ssh xamxam '[ ! -f /var/www/xamxam/storage/xamxam.db ]' || (echo "ERROR: remote database already exists. Remove it manually if you intend to overwrite." && exit 1)