feat: scaffold gold_monitor web hub, API, PM2 deploy and docs

deploy/lib/common.sh

@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+# shellcheck shell=bash
+
+detect_server_ip() {
+  local ip
+  ip="$(hostname -I 2>/dev/null | awk '{print $1}')"
+  if [[ -z "${ip}" ]]; then
+    ip="$(ip -4 route get 1.1.1.1 2>/dev/null | awk '{for(i=1;i<=NF;i++) if($i=="src"){print $(i+1); exit}}')"
+  fi
+  echo "${ip:-127.0.0.1}"
+}
+
+need_root() {
+  if [[ "$(id -u)" -ne 0 ]]; then
+    echo "错误: 请使用 root 执行" >&2
+    exit 1
+  fi
+}
+
+ensure_node_pm2() {
+  if ! command -v node >/dev/null 2>&1; then
+    curl -fsSL https://deb.nodesource.com/setup_20.x | bash -
+    apt-get install -y nodejs
+  fi
+  if ! command -v pm2 >/dev/null 2>&1; then
+    npm install -g pm2
+  fi
+}
+
+verify_http() {
+  local url="$1"
+  curl -fsS --max-time 5 "${url}" >/dev/null 2>&1
+}