Refactor pv installation into ensure_pv function

Moved pv installation logic into a reusable ensure_pv function in both haos-vm.sh and umbrel-os-vm.sh. This improves code clarity and avoids duplicate code for checking and installing the pv package.

vm/haos-vm.sh

@@ -205,6 +205,15 @@ function exit-script() {
   exit
 }
 
+function ensure_pv() {
+  if ! command -v pv &>/dev/null; then
+    msg_info "Installing required package: pv"
+    apt-get update -qq &>/dev/null
+    apt-get install -y pv &>/dev/null
+    msg_ok "Installed pv"
+  fi
+}
+
 function default_settings() {
   BRANCH="$stable"
   VMID=$(get_valid_nextid)
@@ -448,8 +457,8 @@ check_root
 arch_check
 pve_check
 ssh_check
+ensure_pv
 start_script
-
 post_to_api_vm
 
 msg_info "Validating Storage"
@@ -505,10 +514,6 @@ else
   msg_ok "Using cached image ${CL}${BL}$(basename "$CACHE_FILE")${CL}"
 fi
 
-if ! command -v pv &>/dev/null; then
-  apt-get update -qq &>/dev/null && apt-get install -y pv &>/dev/null
-fi
-
 set -o pipefail
 msg_info "Creating Home Assistant OS VM shell"
 qm create "$VMID" -machine q35 -bios ovmf -agent 1 -tablet 0 -localtime 1 ${CPU_TYPE} \

vm/umbrel-os-vm.sh

@@ -201,6 +201,15 @@ function exit-script() {
   exit
 }
 
+function ensure_pv() {
+  if ! command -v pv &>/dev/null; then
+    msg_info "Installing required package: pv"
+    apt-get update -qq &>/dev/null
+    apt-get install -y pv &>/dev/null
+    msg_ok "Installed pv"
+  fi
+}
+
 function default_settings() {
   VMID=$(get_valid_nextid)
   MACHINE="q35"
@@ -432,6 +441,7 @@ check_root
 arch_check
 pve_check
 ssh_check
+ensure_pv
 start_script
 
 msg_info "Validating Storage"
@@ -472,10 +482,6 @@ else
   msg_ok "Using cached Umbrel OS image"
 fi
 
-if ! command -v pv &>/dev/null; then
-  apt-get update -qq &>/dev/null && apt-get install -y pv &>/dev/null
-fi
-
 set -o pipefail
 qm create "$VMID" -machine q35 -bios ovmf -agent 1 -tablet 0 -localtime 1 ${CPU_TYPE} \
   -cores "$CORE_COUNT" -memory "$RAM_SIZE" -name "$HN" -tags community-script \