feat(admin): cleanup page — remove 'Fichiers temporaires' level, promote sections to h2 TOC entries

deploy/xamxam-tmp-cleanup.cron

@@ -0,0 +1,10 @@
+# XAMXAM — abandoned upload garbage-collection cron job
+# Installed to /etc/cron.d/xamxam-tmp-cleanup (system cron format: minute hour dom month dow user command)
+#
+# Deletes staging upload dirs in <storage>/tmp/filepond/ that are abandoned:
+#   - whose referencing PHP session no longer exists, or
+#   - older than the 2h safety fallback.
+# These are never linked to a published TFE, so removing them is risk-free GC.
+# Script is a dry-run unless --no-dry-run is passed.
+# Age threshold overridable via TMP_UPLOAD_MAX_AGE_SECONDS (default 7200).
+5  *  *  *  *  www-data  php /tmp/cleanup-tmp-uploads.php --no-dry-run >> /var/log/xamxam-tmp-cleanup-$(date +\%Y-\%m-\%d).log 2>&1