Archlinux-VM: fix LVM/LVM-thin storage and improve error reporting | VM's add correct exit_code for analytics (#11842)

* fix(archlinux-vm): fix LVM/LVM-thin storage and improve error reporting

- Add catch-all (*) case for storage types (LVM, LVM-thin, zfspool)
  Previously only nfs/dir/cifs and btrfs were handled, leaving
  DISK_EXT, DISK_REF, and DISK_IMPORT unset on LVM/LVM-thin storage
- Fix error_handler to send numeric exit_code to API instead of
  bash command text (which caused 'Unknown error' in telemetry)
- Replace fragile pvesm alloc for EFI disk with Proxmox-managed
  :0,efitype=4m (consistent with docker-vm.sh)
- Modernize disk import: auto-detect qm disk import vs qm importdisk,
  parse output to get correct disk reference instead of guessing names
- Use --format flag (double dash) consistent with modern Proxmox API
- Remove unused FORMAT variable (EFI type now always set correctly)
- Remove fragile eval-based disk name construction

* fix(vm): fix LVM/LVM-thin storage and error reporting for all VM scripts

- Add catch-all (*) case to storage type detection in all VM scripts
  that were missing it (debian-vm, debian-13-vm, ubuntu2204/2404/2504,
  nextcloud-vm, owncloud-vm, opnsense-vm, pimox-haos-vm)
- Add catch-all to mikrotik-routeros (had zfspool but not lvm/lvmthin)
- Fix error_handler in ALL 14 VM scripts to send numeric exit_code
  to post_update_to_api instead of bash command text, which caused
  'Unknown error' in telemetry because the API expects a number

vm/ubuntu2504-vm.sh

@@ -68,7 +68,7 @@ function error_handler() {
   local exit_code="$?"
   local line_number="$1"
   local command="$2"
-  post_update_to_api "failed" "$command"
+  post_update_to_api "failed" "$exit_code"
   local error_message="${RD}[ERROR]${CL} in line ${RD}$line_number${CL}: exit code ${RD}$exit_code${CL}: while executing command ${YW}$command${CL}"
   echo -e "\n$error_message\n"
   cleanup_vmid
@@ -483,6 +483,11 @@ btrfs)
   FORMAT=",efitype=4m"
   THIN=""
   ;;
+*)
+  DISK_EXT=""
+  DISK_REF=""
+  DISK_IMPORT="-format raw"
+  ;;
 esac
 for i in {0,1}; do
   disk="DISK$i"