pve: add pve-destroy.sh to delete VM/CT with confirmation

pve/pve-destroy.sh

+#!/bin/sh
+# Delete VM or CT with confirmation
+# Usage: pve-destroy.sh VMID
+
+set -e
+
+MYDIR=$(dirname "$0")
+. "$MYDIR/functions"
+
+VMID="$1"
+
+if [ -z "$VMID" ] ; then
+    echo "Usage: $(basename "$0") VMID" >&2
+    echo "Delete a VM or CT from the PVE cluster (with confirmation)." >&2
+    exit 1
+fi
+
+resolve_vmid "$VMID"
+mgr=$(vm_mgr)
+
+if [ "$RES_STATUS" = "running" ] ; then
+    fatal "$RES_TYPE $VMID ($RES_NAME) is running — stop it first"
+fi
+
+echo ""
+echo "About to destroy:"
+echo "  Type:   $RES_TYPE"
+echo "  VMID:   $VMID"
+echo "  Name:   $RES_NAME"
+echo "  Node:   $RES_NODE"
+echo "  Pool:   $RES_POOL"
+echo ""
+printf "Type VM name '%s' to confirm deletion: " "$RES_NAME"
+read confirm
+
+if [ "$confirm" != "$RES_NAME" ] ; then
+    log "Confirmation failed — aborting."
+    exit 1
+fi
+
+log "Destroying $RES_TYPE $VMID ($RES_NAME) on $RES_NODE ..."
+vm_cmd "$mgr" destroy "$VMID" --purge
+log "Destroyed."