Initial backup: 18 monitoring scripts + timers + docs

- 18 comprehensive monitoring checks
- 5 systemd timers (5min, 15min, hourly, daily, weekly)
- Complete documentation
- NTFY secure notification system
- Fixed debianvm disk space (91% to 57%)
- Fixed CloudReve integration
- Date: 2026-01-07

scripts/check-vm-shutdowns.sh

@@ -0,0 +1,34 @@
+#!/bin/bash
+# Detect unexpected VM/container shutdowns
+set -euo pipefail
+
+SEND_NTFY="/usr/local/bin/send-ntfy.sh"
+STATE_FILE="/var/run/vm-states.txt"
+CURRENT_STATE="/tmp/vm-current-state.txt"
+
+# Get current VM/CT states
+qm list | awk 'NR>1 {print "VM:"$1":"$3}' > "$CURRENT_STATE"
+pct list | awk 'NR>1 {print "CT:"$1":"$2}' >> "$CURRENT_STATE"
+
+# If state file exists, compare
+if [ -f "$STATE_FILE" ]; then
+    while IFS=':' read -r TYPE ID STATE; do
+        PREV_STATE=$(grep "^$TYPE:$ID:" "$STATE_FILE" 2>/dev/null | cut -d':' -f3 || echo "")
+        
+        # If was running but now stopped, alert
+        if [ "$PREV_STATE" = "running" ] && [ "$STATE" = "stopped" ]; then
+            if [ "$TYPE" = "VM" ]; then
+                NAME=$(qm config $ID 2>/dev/null | grep "^name:" | awk '{print $2}' || echo "VM$ID")
+                $SEND_NTFY critical "VM Stopped Unexpectedly" "🔴 CRITICAL: VM $NAME (VMID $ID) stopped unexpectedly!" "skull,error,computer"
+            else
+                NAME=$(pct config $ID 2>/dev/null | grep "^hostname:" | awk '{print $2}' || echo "CT$ID")
+                $SEND_NTFY critical "Container Stopped Unexpectedly" "🔴 CRITICAL: Container $NAME (CT $ID) stopped unexpectedly!" "skull,error,package"
+            fi
+        fi
+    done < "$CURRENT_STATE"
+fi
+
+# Save current state
+cp "$CURRENT_STATE" "$STATE_FILE"
+
+logger -t vm-shutdown-monitor "VM/CT state check completed"