refactor(node-heap): raise auto cap to 12GB and simplify OOM hint

- Increase setup_nodejs auto heap clamp from 4GB to 12GB for heavy frontend builds
- Keep lower bound at 1GB and preserve user override precedence
- Simplify error_handler Node OOM output to a single concise hint
- Align error_handler heap suggestion clamp to 12GB

CHANGELOG.md

@@ -445,6 +445,14 @@ Exercise vigilance regarding copycat or coat-tailing sites that seek to exploit
 
 </details>
 
+## 2026-04-23
+
+### 💾 Core
+
+  - #### 🐞 Bug Fixes
+
+    - core: hotfix - prefer silent mode on PHS env conflict [@MickLesk](https://github.com/MickLesk) ([#13951](https://github.com/community-scripts/ProxmoxVE/pull/13951))
+
 ## 2026-04-22
 
 ### 🆕 New Scripts
@@ -460,6 +468,12 @@ Exercise vigilance regarding copycat or coat-tailing sites that seek to exploit
 
     - add --clear to uv venv in update_script() to prevent interactive prompt [@MickLesk](https://github.com/MickLesk) ([#13926](https://github.com/community-scripts/ProxmoxVE/pull/13926))
 
+### 💾 Core
+
+  - #### ✨ New Features
+
+    - core: Add PHS_VERBOSE env var to skip verbose mode prompts [@gormanity](https://github.com/gormanity) ([#13797](https://github.com/community-scripts/ProxmoxVE/pull/13797))
+
 ## 2026-04-21
 
 ### 🆕 New Scripts

ct/termix.sh

@@ -155,6 +155,8 @@ EOF
       /opt/termix/nginx/client_body
     msg_ok "Recreated Directories"
 
+    NODE_VERSION="24" setup_nodejs
+
     msg_info "Building Frontend"
     cd /opt/termix
     export COREPACK_ENABLE_DOWNLOAD_PROMPT=0

misc/build.func

@@ -2702,16 +2702,21 @@ advanced_settings() {
     # STEP 28: Verbose Mode & Confirmation
     # ═══════════════════════════════════════════════════════════════════════════
     28)
-      local verbose_default_flag="--defaultno"
-      [[ "$_verbose" == "yes" ]] && verbose_default_flag=""
-
-      if whiptail --backtitle "Proxmox VE Helper Scripts [Step $STEP/$MAX_STEP]" \
-        --title "VERBOSE MODE" \
-        $verbose_default_flag \
-        --yesno "\nEnable Verbose Mode?\n\nShows detailed output during installation." 12 58; then
+      # PHS_VERBOSE forces verbose mode and skips the prompt
+      if [[ "$PHS_MODE" == "verbose" ]]; then
         _verbose="yes"
       else
-        _verbose="no"
+        local verbose_default_flag="--defaultno"
+        [[ "$_verbose" == "yes" ]] && verbose_default_flag=""
+
+        if whiptail --backtitle "Proxmox VE Helper Scripts [Step $STEP/$MAX_STEP]" \
+          --title "VERBOSE MODE" \
+          $verbose_default_flag \
+          --yesno "\nEnable Verbose Mode?\n\nShows detailed output during installation." 12 58; then
+          _verbose="yes"
+        else
+          _verbose="no"
+        fi
       fi
       # Build summary
       local ct_type_desc="Unprivileged"
@@ -3444,7 +3449,7 @@ configure_ssh_settings() {
 # msg_menu()
 #
 # - Displays a numbered menu for update_script() functions
-# - In silent mode (PHS_SILENT=1): auto-selects the default option
+# - In silent mode (PHS_MODE=silent): auto-selects the default option
 # - In interactive mode: shows menu via read with 10s timeout + default fallback
 # - Usage: CHOICE=$(msg_menu "Title" "tag1" "Description 1" "tag2" "Desc 2" ...)
 # - The first item is always the default
@@ -3468,7 +3473,7 @@ msg_menu() {
   local count=${#tags[@]}
 
   # Silent mode: return default immediately
-  if [[ -n "${PHS_SILENT+x}" ]] && [[ "${PHS_SILENT}" == "1" ]]; then
+  if [[ "$PHS_MODE" == "silent" ]]; then
     echo "$default_tag"
     return 0
   fi
@@ -3504,6 +3509,34 @@ msg_menu() {
   return 0
 }
 
+# ------------------------------------------------------------------------------
+# resolve_phs_mode()
+#
+# - Resolves PHS_SILENT/PHS_VERBOSE env vars into a single PHS_MODE enum
+# - Values: "silent", "verbose", "interactive"
+# - If both PHS_SILENT=1 and PHS_VERBOSE=1, shows a conflict warning
+#   and defaults to "interactive"
+# - Should be called once early, before any mode-dependent logic
+# ------------------------------------------------------------------------------
+resolve_phs_mode() {
+  if [[ -n "${PHS_SILENT+x}" ]] && [[ "${PHS_SILENT}" == "1" ]] && [[ -n "${PHS_VERBOSE+x}" ]] && [[ "${PHS_VERBOSE}" == "1" ]]; then
+    # Conflict handling must never block unattended/non-TTY updates.
+    # Prefer silent mode to keep automation safe.
+    if [[ -t 0 ]] && [[ -t 1 ]] && command -v whiptail >/dev/null 2>&1; then
+      whiptail --backtitle "Proxmox VE Helper Scripts" \
+        --title "Configuration Conflict Warning" \
+        --msgbox "PHS_SILENT and PHS_VERBOSE are both set.\n\nFalling back to silent mode." 10 58 || true
+    fi
+    PHS_MODE="silent"
+  elif [[ -n "${PHS_SILENT+x}" ]] && [[ "${PHS_SILENT}" == "1" ]]; then
+    PHS_MODE="silent"
+  elif [[ -n "${PHS_VERBOSE+x}" ]] && [[ "${PHS_VERBOSE}" == "1" ]]; then
+    PHS_MODE="verbose"
+  else
+    PHS_MODE="interactive"
+  fi
+}
+
 # ------------------------------------------------------------------------------
 # start()
 #
@@ -3514,17 +3547,16 @@ msg_menu() {
 # ------------------------------------------------------------------------------
 start() {
   source <(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVE/main/misc/tools.func)
+  resolve_phs_mode
   if command -v pveversion >/dev/null 2>&1; then
     install_script || return 0
     return 0
-  elif [ ! -z ${PHS_SILENT+x} ] && [[ "${PHS_SILENT}" == "1" ]]; then
+  elif [[ "$PHS_MODE" == "silent" ]]; then
     VERBOSE="no"
     set_std_mode
-    ensure_profile_loaded
-    get_lxc_ip
-    update_script
-    update_motd_ip
-    cleanup_lxc
+  elif [[ "$PHS_MODE" == "verbose" ]]; then
+    VERBOSE="yes"
+    set_std_mode
   else
     CHOICE=$(whiptail --backtitle "Proxmox VE Helper Scripts" --title "${APP} LXC Update/Setting" --menu \
       "Support/Update functions for ${APP} LXC. Choose an option:" \
@@ -3548,12 +3580,12 @@ start() {
       exit 0
       ;;
     esac
-    ensure_profile_loaded
-    get_lxc_ip
-    update_script
-    update_motd_ip
-    cleanup_lxc
   fi
+  ensure_profile_loaded
+  get_lxc_ip
+  update_script
+  update_motd_ip
+  cleanup_lxc
 }
 
 # ==============================================================================

misc/core.func

@@ -940,7 +940,7 @@ is_verbose_mode() {
 #
 # - Detects if script is running in unattended/non-interactive mode
 # - Checks MODE variable first (primary method)
-# - Falls back to legacy flags (PHS_SILENT, var_unattended)
+# - Falls back to legacy flags (PHS_MODE, var_unattended)
 # - Returns 0 (true) if unattended, 1 (false) otherwise
 # - Used by prompt functions to auto-apply defaults
 #
@@ -984,7 +984,7 @@ is_unattended() {
   esac
 
   # Legacy fallbacks for compatibility
-  [[ "${PHS_SILENT:-0}" == "1" ]] && return 0
+  [[ "${PHS_MODE:-}" == "silent" ]] && return 0
   [[ "${var_unattended:-}" =~ ^(yes|true|1)$ ]] && return 0
   [[ "${UNATTENDED:-}" =~ ^(yes|true|1)$ ]] && return 0
 

misc/error_handler.func

@@ -313,6 +313,51 @@ error_handler() {
     echo -e "${TAB}-----------------------------------\n"
   fi
 
+  # Detect probable Node.js heap OOM and print actionable guidance.
+  # This avoids generic SIGABRT/SIGKILL confusion for frontend build failures.
+  local node_oom_detected="false"
+  local node_build_context="false"
+  if [[ "$command" =~ (npm|pnpm|yarn|node|vite|turbo) ]]; then
+    node_build_context="true"
+  fi
+  if [[ "$exit_code" == "243" ]]; then
+    node_oom_detected="true"
+  elif [[ -n "$active_log" && -s "$active_log" ]]; then
+    if tail -n 200 "$active_log" 2>/dev/null | grep -Eqi 'Reached heap limit|JavaScript heap out of memory|Allocation failed - JavaScript heap out of memory|FATAL ERROR: Reached heap limit'; then
+      node_oom_detected="true"
+    fi
+  fi
+
+  if [[ "$node_oom_detected" == "true" ]] || { [[ "$node_build_context" == "true" ]] && [[ "$exit_code" =~ ^(134|137)$ ]]; }; then
+    local heap_hint_mb=""
+
+    # If explicitly configured, prefer the current value for troubleshooting output.
+    if [[ -n "${NODE_OPTIONS:-}" ]] && [[ "${NODE_OPTIONS}" =~ max-old-space-size=([0-9]+) ]]; then
+      heap_hint_mb="${BASH_REMATCH[1]}"
+    elif [[ -n "${var_ram:-}" ]] && [[ "${var_ram}" =~ ^[0-9]+$ ]]; then
+      heap_hint_mb=$((var_ram * 75 / 100))
+    else
+      local mem_kb=""
+      mem_kb=$(awk '/^MemTotal:/ {print $2; exit}' /proc/meminfo 2>/dev/null || echo "")
+      if [[ "$mem_kb" =~ ^[0-9]+$ ]]; then
+        local mem_mb=$((mem_kb / 1024))
+        heap_hint_mb=$((mem_mb * 75 / 100))
+      fi
+    fi
+
+    if [[ -z "$heap_hint_mb" ]] || ((heap_hint_mb < 1024)); then
+      heap_hint_mb=1024
+    elif ((heap_hint_mb > 12288)); then
+      heap_hint_mb=12288
+    fi
+
+    if declare -f msg_warn >/dev/null 2>&1; then
+      msg_warn "Possible Node.js heap OOM. Try: export NODE_OPTIONS=\"--max-old-space-size=${heap_hint_mb}\" and rerun the build."
+    else
+      echo -e "${YW}Possible Node.js heap OOM. Try: export NODE_OPTIONS=\"--max-old-space-size=${heap_hint_mb}\" and rerun the build.${CL}"
+    fi
+  fi
+
   # Detect context: Container (INSTALL_LOG set + inside container /root) vs Host
   if [[ -n "${INSTALL_LOG:-}" && -f "${INSTALL_LOG:-}" && -d /root ]]; then
     # CONTAINER CONTEXT: Copy log and create flag file for host

misc/tools.func

@@ -6420,7 +6420,37 @@ function setup_nodejs() {
     msg_ok "Setup Node.js $NODE_VERSION"
   fi
 
-  export NODE_OPTIONS="--max-old-space-size=4096"
+  # Set a safe default heap limit for Node.js builds if not explicitly provided.
+  # Priority:
+  #   1) NODE_OPTIONS (caller/user override)
+  #   2) NODE_MAX_OLD_SPACE_SIZE (explicit MB override)
+  #   3) var_ram (LXC memory setting, MB)
+  #   4) /proc/meminfo (runtime memory detection)
+  # Auto value is clamped to 1024..12288 MB.
+  if [[ -z "${NODE_OPTIONS:-}" ]]; then
+    local node_heap_mb=""
+
+    if [[ -n "${NODE_MAX_OLD_SPACE_SIZE:-}" ]] && [[ "${NODE_MAX_OLD_SPACE_SIZE}" =~ ^[0-9]+$ ]]; then
+      node_heap_mb="${NODE_MAX_OLD_SPACE_SIZE}"
+    elif [[ -n "${var_ram:-}" ]] && [[ "${var_ram}" =~ ^[0-9]+$ ]]; then
+      node_heap_mb=$((var_ram * 75 / 100))
+    else
+      local total_mem_kb=""
+      total_mem_kb=$(awk '/^MemTotal:/ {print $2; exit}' /proc/meminfo 2>/dev/null || echo "")
+      if [[ "$total_mem_kb" =~ ^[0-9]+$ ]]; then
+        local total_mem_mb=$((total_mem_kb / 1024))
+        node_heap_mb=$((total_mem_mb * 75 / 100))
+      fi
+    fi
+
+    if [[ -z "$node_heap_mb" ]] || ((node_heap_mb < 1024)); then
+      node_heap_mb=1024
+    elif ((node_heap_mb > 12288)); then
+      node_heap_mb=12288
+    fi
+
+    export NODE_OPTIONS="--max-old-space-size=${node_heap_mb}"
+  fi
 
   # Ensure valid working directory for npm (avoids uv_cwd error)
   if [[ ! -d /opt ]]; then