feat: 推荐插件目录收录 dsh-sentinel（Tab 注册）

- plugins-tabs.ts 收录 dsh-sentinel（条件驱动的 agent 唤醒系统，注册 dsh-sentinel:watches Tab）
- install 拼接官方一键命令：cd ~/.dsh && dsh plugin --profile web add "github:fuhefei/dsh-sentinel#v0.7.0"
- 新增 pluginSentinelDesc 文案（zh/en）；测试同步（tab 目录不再为空态）

src/client/locales.ts

@@ -218,6 +218,7 @@ export const zh = {
   openPlugin: '跳转',
   copyInstall: '复制安装命令',
   pluginOfficeDesc: '为 better-sidebar 编辑器提供 Office 三件套预览（.docx / .xlsx / .pptx），把重型 Office 渲染库拆出主包、按需安装',
+  pluginSentinelDesc: '条件驱动的 agent 唤醒系统：文件/进程/端口/HTTP/命令/webhook 传感器，条件达成自动唤醒休眠会话；注册「哨兵」Tab 展示服务器全局监控表',
 }
 
 /** The en dictionary (key-set-equal to zh, enforced by the type annotation). */
@@ -429,6 +430,7 @@ export const en: Record<keyof typeof zh, string> = {
   openPlugin: 'Open',
   copyInstall: 'Copy install command',
   pluginOfficeDesc: 'Office-suite preview (.docx / .xlsx / .pptx) for the better-sidebar editor, keeping the heavy Office render libraries out of the core bundle',
+  pluginSentinelDesc: 'Condition-driven agent wakeup: file/process/port/http/command/webhook sensors wake dormant sessions when conditions fire; registers a "Sentinel" tab with the server-wide watch table',
 }
 
 /**

src/client/plugins-tabs.ts

@@ -3,13 +3,25 @@
  * shown in the "add tab plugin" modal (Side card settings → 侧边栏内容 grid
  * → the dashed card). Adding an entry: append one object here (unique
  * `id` = npm package name, `url` = GitHub repo, `description` =
- * i18n-friendly, `install` = the full shell command pre-filled into the
- * install terminal — it starts with `cd ~/.dsh` so the install runs with
- * the DSH home as the working directory). Data integrity is guarded by
- * `tests/plugin-list.spec.ts`.
+ * i18n-friendly (add a `pluginXxxDesc` key in locales.ts), `install` = the
+ * full one-line install script — it starts with `cd ~/.dsh` so the install
+ * runs with the DSH home as the working directory). Data integrity is
+ * guarded by `tests/plugin-list.spec.ts`.
  */
+import { t } from './locales.ts'
 import type { PluginEntry } from './plugins-shared.ts'
 
-/** Tab-registration plugins (empty until a real one exists — the modal
- *  renders the empty state and points at the GitHub topic). */
-export const builtinTabPlugins: readonly PluginEntry[] = []
+/** Tab-registration plugins (alphabetical order). */
+export const builtinTabPlugins: readonly PluginEntry[] = [
+  {
+    id: '@dsh-external/dsh-sentinel',
+    name: 'dsh-sentinel 唤醒系统',
+    url: 'https://github.com/fuhefei/dsh-sentinel',
+    description: () => t('pluginSentinelDesc'),
+    // The official one-line bundle-channel install (git source, build
+    // artifacts committed — no build step needed). The `github:…` form is
+    // the upstream's documented command, `cd ~/.dsh` keeps the profile
+    // context consistent with the other entries.
+    install: 'cd ~/.dsh && dsh plugin --profile web add "github:fuhefei/dsh-sentinel#v0.7.0"',
+  },
+]