feat: Pro 买断门禁、SFTP 精简与批量多机改造

新增 entitlement/license IPC 与 Waffo 一次性结账服务骨架，挂载 AI/转发/代理/串口/广播/批量导入导出门禁；批量执行改为结果矩阵并复用连接池，SFTP 工具栏图标化并去掉已连接条，同时完善跨平台本地终端与窗口配置。

Co-authored-by: Cursor <cursoragent@cursor.com>

license-server/package.json

@@ -0,0 +1,19 @@
+{
+  "name": "opsxshell-license-server",
+  "version": "1.0.0",
+  "private": true,
+  "type": "module",
+  "description": "OpsXShell Pro license + Waffo Pancake checkout (server-side only)",
+  "engines": {
+    "node": ">=20"
+  },
+  "scripts": {
+    "dev": "node --watch src/server.mjs",
+    "start": "node src/server.mjs",
+    "bootstrap": "node scripts/bootstrap-products.mjs",
+    "issue-dev-license": "node scripts/issue-dev-license.mjs"
+  },
+  "dependencies": {
+    "@waffo/pancake-ts": "^0.1.9"
+  }
+}