Add comprehensive Plex backup management scripts

- Introduced `restore-plex.sh` for restoring Plex backups with logging and validation.
- Created `test-plex-backup.sh` for automated testing of backup functionalities.
- Developed `validate-plex-backups.sh` for validating backup integrity and monitoring.
- Updated `update.sh` to reference the correct path for Plex service management.

crontab/crontab-io.txt

@@ -0,0 +1,12 @@
+# Enhanced Crontab Entries for IO (Download/Acquisition Server)
+# 
+# This system runs download management services (Radarr, Sonarr, SABnzbd, etc.)
+# and should focus on Docker container management rather than media server tasks
+
+# Daily Docker backup at 0200 with enhanced logging
+# Backs up Docker container configurations and data
+0 2 * * * { echo "Starting Docker backup"; /home/acedanger/shell/backup-docker.sh; echo "Docker backup completed with exit code: $?"; } 2>&1 | logger -t docker-backup -p user.info
+
+# Optional: Monitor Docker container health (every 6 hours)
+# This can help detect if any download services are failing
+# 0 */6 * * * { echo "Docker health check"; docker ps --format "table {{.Names}}\t{{.Status}}" | grep -v "Up"; } 2>&1 | logger -t docker-health -p user.info