feat: add systemd timer for daily scheduled backup recap at 07:00

deploy/ns8-backup-monitor-check.timer

@@ -0,0 +1,26 @@
+# ns8-backup-monitor-check.timer
+#
+# Fires ns8-backup-monitor-check.service once per day at 07:00 local time.
+#
+# Adjust OnCalendar to match your backup plan schedule — the timer should
+# fire *after* the backup window has closed so that all module status keys
+# are already written to Redis when the check runs.
+#
+# Examples:
+#   Daily at 07:00:        OnCalendar=*-*-* 07:00:00
+#   Mon-Fri at 06:30:      OnCalendar=Mon-Fri *-*-* 06:30:00
+#   Every 6 hours:         OnCalendar=*-*-* 00/6:00:00
+[Unit]
+Description=ns8-backup-monitor daily backup recap timer
+
+[Timer]
+# Default: every day at 07:00 local time.
+# Change this to fire ~30 minutes after your last scheduled backup ends.
+OnCalendar=*-*-* 07:00:00
+# If the system was off when the timer was supposed to fire, run it
+# within 5 minutes of the next boot.
+Persistent=true
+Unit=ns8-backup-monitor-check.service
+
+[Install]
+WantedBy=timers.target