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>

test/helpers/entitlement.ts

@@ -0,0 +1,24 @@
+import { useEntitlementStore } from '../../src/stores/entitlementStore'
+
+/** Enable Pro features for acceptance tests that exercise gated flows. */
+export function unlockProForTests(): void {
+  useEntitlementStore.setState({
+    plan: 'pro',
+    deviceId: 'test-device',
+    expiresAt: null,
+    features: ['*'],
+    loaded: true,
+    wall: { open: false },
+  })
+}
+
+export function resetEntitlementForTests(): void {
+  useEntitlementStore.setState({
+    plan: 'free',
+    deviceId: 'test-device',
+    expiresAt: null,
+    features: [],
+    loaded: true,
+    wall: { open: false },
+  })
+}