remove whiptail from update scripts for unattended update support (#11712)

* Simplify Alpine update scripts to run upgrade

Remove interactive whiptail menus, loops and newt dependency checks from ct/alpine-docker.sh, ct/alpine-zigbee2mqtt.sh, and ct/alpine.sh. Each update_script now simply calls header_info, runs $STD apk -U upgrade, displays a success message and exits, simplifying and automating the update flow.

* feat(update-scripts): replace whiptail with msg_menu for unattended updates

Remove all whiptail dialogs from ct update_script() functions and replace
with msg_menu() - a lightweight read-based menu that supports:
- PHS_SILENT=1: auto-selects first (default) option for unattended mode
- Interactive: numbered menu with 10s timeout and default fallback

Converted scripts (whiptail menu → msg_menu):
- plex.sh, npmplus.sh, cronicle.sh, meilisearch.sh, node-red.sh
- homeassistant.sh, podman-homeassistant.sh
- vaultwarden.sh, alpine-vaultwarden.sh
- loki.sh, alpine-loki.sh
- alpine-grafana.sh, alpine-redis.sh, alpine-valkey.sh
- alpine-nextcloud.sh

Simplified scripts (removed unnecessary whiptail for single-action updates):
- alpine.sh, alpine-docker.sh, alpine-zigbee2mqtt.sh

Special handling:
- gitea-mirror.sh: replaced yesno/msgbox with read -rp confirmations,
  exit 75 in silent mode for major version upgrades requiring interaction
- vaultwarden.sh/alpine-vaultwarden.sh: passwordbox replaced with
  read -r -s -p, skipped in silent mode with warning
- nginxproxymanager.sh: exit 1 → exit 75 for disabled script

Infrastructure:
- Added msg_menu() helper to misc/build.func
- Added exit code 75 handling in update-apps.sh (skip, not fail)

Closes #11620

* refactor(update-scripts): remove menus where sequential updates suffice

- alpine-nextcloud: add apk upgrade as the update action (was missing)
- meilisearch: run meilisearch + UI updates sequentially (like bar-assistant)
- npmplus: run alpine upgrade + docker pull sequentially, no menu
- vaultwarden: update VaultWarden + Web-Vault sequentially, remove admin
  token option (interactive-only, not suitable for unattended updates)
- alpine-vaultwarden: just run apk upgrade, remove admin token menu

ct/vaultwarden.sh

@@ -31,11 +31,9 @@ function update_script() {
   VAULT=$(get_latest_github_release "dani-garcia/vaultwarden")
   WVRELEASE=$(get_latest_github_release "dani-garcia/bw_web_builds")
 
-  UPD=$(whiptail --backtitle "Proxmox VE Helper Scripts" --title "SUPPORT" --radiolist --cancel-button Exit-Script "Spacebar = Select" 11 58 3 \
-    "1" "VaultWarden $VAULT" ON \
-    "2" "Web-Vault $WVRELEASE" OFF \
-    "3" "Set Admin Token" OFF \
-    3>&1 1>&2 2>&3)
+  UPD=$(msg_menu "Vaultwarden Update Options" \
+    "1" "Update VaultWarden + Web-Vault" \
+    "2" "Set Admin Token")
 
   if [ "$UPD" == "1" ]; then
     if check_for_gh_release "vaultwarden" "dani-garcia/vaultwarden"; then
@@ -59,14 +57,10 @@ function update_script() {
       msg_info "Starting Service"
       systemctl start vaultwarden
       msg_ok "Started Service"
-      msg_ok "Updated successfully!"
     else
       msg_ok "VaultWarden is already up-to-date"
     fi
-    exit
-  fi
 
-  if [ "$UPD" == "2" ]; then
     if check_for_gh_release "vaultwarden_webvault" "dani-garcia/bw_web_builds"; then
       msg_info "Stopping Service"
       systemctl stop vaultwarden
@@ -84,16 +78,22 @@ function update_script() {
       msg_info "Starting Service"
       systemctl start vaultwarden
       msg_ok "Started Service"
-      msg_ok "Updated successfully!"
     else
       msg_ok "Web-Vault is already up-to-date"
     fi
+
+    msg_ok "Updated successfully!"
     exit
   fi
 
-  if [ "$UPD" == "3" ]; then
-    if NEWTOKEN=$(whiptail --backtitle "Proxmox VE Helper Scripts" --passwordbox "Set the ADMIN_TOKEN" 10 58 3>&1 1>&2 2>&3); then
-      if [[ -z "$NEWTOKEN" ]]; then exit; fi
+  if [ "$UPD" == "2" ]; then
+    if [[ "${PHS_SILENT:-0}" == "1" ]]; then
+      msg_warn "Set Admin Token requires interactive mode, skipping."
+      exit
+    fi
+    read -r -s -p "Set the ADMIN_TOKEN: " NEWTOKEN
+    echo ""
+    if [[ -n "$NEWTOKEN" ]]; then
       ensure_dependencies argon2
       TOKEN=$(echo -n "${NEWTOKEN}" | argon2 "$(openssl rand -base64 32)" -t 2 -m 16 -p 4 -l 64 -e)
       sed -i "s|ADMIN_TOKEN=.*|ADMIN_TOKEN='${TOKEN}'|" /opt/vaultwarden/.env