卫戍协议：盟约 web remake — initial import

Online co-op browser remake of Arknights' Stronghold Protocol: Alliance
(client-simulated combat, official waves/bonds/items/strategies, 3D board,
facing wheel, operator loadout, official emotes, deployment scripts).

scripts/start.sh

@@ -0,0 +1,27 @@
+#!/usr/bin/env bash
+# 卫戍协议：盟约 · macOS / Linux start script. Docs: docs/DEPLOY.md
+#   scripts/start.sh [--port 3001] [--no-open] [--no-local] [--no-assets] …   (arguments go to scripts/launch.mjs)
+# Checks Node.js ≥ 18, runs `npm ci` on the first run, then scripts/launch.mjs (tools/setup.mjs → server → browser).
+set -euo pipefail
+cd "$(dirname "$0")/.."
+
+if ! command -v node >/dev/null 2>&1; then
+  echo "未找到 Node.js（需要 18 或更高，推荐 22 LTS）。Node.js not found."
+  if [ "$(uname -s)" = "Darwin" ]; then
+    echo "  安装：brew install node@22   或   https://nodejs.org/zh-cn/download"
+  else
+    echo "  安装：https://nodejs.org/zh-cn/download （或发行版的包管理器 / nvm / fnm）"
+  fi
+  exit 1
+fi
+if ! node -e "process.exit(Number(process.versions.node.split('.')[0])>=18?0:1)"; then
+  echo "Node.js $(node -v) 太旧，需要 18 或更高（推荐 22 LTS）：https://nodejs.org/zh-cn/download"
+  exit 1
+fi
+
+if [ ! -f node_modules/ws/package.json ]; then
+  echo "[首次运行] 正在安装依赖 npm ci …"
+  npm ci --no-audit --no-fund || npm install --no-audit --no-fund
+fi
+
+exec node scripts/launch.mjs "$@"