🐛 fix(client): 后台判定改为现读可见性，补投递诊断

README.md

@@ -19,40 +19,54 @@ Windows / macOS / Linux 三个平台走的是同一条通知通道（渲染进
 | 状态 | 行为 |
 | --- | --- |
 | DSH 窗口**不在前台** | **系统通知**（这是插件唯一能拿到的系统通知通道，三个平台一致）。点通知：窗口回到前台并跳到该会话 |
-| DSH 窗口在前台，且**不是**你正在看的那个会话 | **应用内轻弹窗**：右上角悬浮，点「查看」跳过去，6 秒自动消失，鼠标悬停时不消失，Esc 关掉最上面一条 |
+| DSH 窗口在前台，且**不是**你正在看的那个会话 | **应用内轻弹窗**：右上角悬浮，标题是提醒类型、下面一行是会话题目与细节；点「查看」跳过去，6 秒自动消失，鼠标悬停时不消失，Esc 或者 ✕ 关掉 |
 | DSH 窗口在前台，且就是你**正在看的**那个会话 | 不打扰（你在看，不需要弹） |
 
 ## 设置
 
-**设置 → 通用 → 会话通知**：
+**插件 → 会话通知**（插件自己的介绍页里）：
 
-- 显示系统通知权限状态；
-- 未授权时点「允许通知」请求权限（浏览器要求必须由你手动点击才能弹权限框），授权后自动发一条测试通知；
-- 已授权时点「测试通知」随时验证；
-- 权限被系统层关闭时，按平台给出开启路径（Windows / macOS 的通知设置、Linux 桌面环境的通知设置）；
-- 三个开关分别控制**完成 / 授权 / 提问**三类提醒（默认全开；开关状态存在当前页面内存里，刷新回到默认——本插件不写配置文件）。
+- 三个开关分别控制**完成 / 授权 / 提问**三类提醒（默认全开），状态存在浏览器本地，重装插件不丢；
+- 系统通知权限状态；未授权时点「允许通知」请求权限（浏览器要求必须由你手动点击才能弹权限框），授权后自动发一条测试通知；权限被系统层关闭时按平台给出开启路径；
+- 「测试系统通知」直接走系统通知通道（窗口在前台也照发），专门用来验证系统通知本身是否可用；
+- 「运行状态」一段显示：窗口现在是前台还是后台（决定会走哪条通道）、观察器是否真的收到了会话状态、以及**最近一次投递走的通道与时间**。
+
+设置放在插件自己的页面里，而不是「设置 → 通用」：它是这个插件的配置，不是 DSH 的通用偏好。页面顶部是 DSH 自己渲染的插件标题与描述，所以这块配置不再重复标题，直接用一句「提醒是怎么送出去的」开头。
 
 ## 安装
 
-在 DSH 的 **插件 → 添加插件** 里填本目录的绝对路径即可（`plugin_manager` 也会做同样的安装）：
+### 1. 从 Git 仓库安装（推荐）
+
+在 DSH 的 **插件 → 添加插件** 的上方输入框里填：
+
+```text
+https://gitea.iwake.top/dsh-plugin/session-notify.git#v1.0.3
+```
+
+`#` 后面跟标签或提交，用来锁定版本；不写则取默认分支。跟随 1.x 最新版可以写 `#semver:^1.0.3`。仓库是公开的，不需要凭据，也不用改「安装源」。
+
+### 2. 本地路径安装
+
+把仓库克隆或下载到本机，在同一个输入框里填包目录的绝对路径，例如：
 
 ```text
 D:\DeepSeek Harness Plugins\dsh-session-notify
 ```
 
-安装后：
+### 装完之后
 
-- **浏览器半**随页面加载，刷新页面即生效；
-- **宿主半**为空壳（不改任何 DSH 状态），如需重启才生效，完全退出 DSH 再打开即可；
-- 本插件没有第三方依赖，不需要 pnpm 下载，也不需要构建步骤。
+- **浏览器半**随页面加载，**刷新页面**即生效；
+- **宿主半**是空壳（不改任何 DSH 状态、不注册服务与路由），只有它变化时才需要完全退出 DSH 再打开；
+- 本插件没有第三方依赖，不需要 pnpm 下载，也没有构建步骤。
 
 卸载：插件页里移除 `@dsh-plugin/session-notify`（它同时是 profile 的一个 bundle）。
 
 ## 平台说明与验证范围
 
 - **通道是跨平台统一的**：插件的提醒都通过页面（Electron 渲染进程）的 `Notification` 构造器发出，Windows 通知中心 / macOS 通知中心 / Linux 通知守护（libnotify、GNOME、KDE）都由系统把它转成原生通知；应用内轻弹窗是纯 DOM，与平台无关。
+- **前台/后台的判定不依赖单一信号**：每次都现读页面的可见性与文档焦点（任一为"不可见"就算后台），不靠"记住上次的 blur 事件"——桌面外壳里漏掉一次 blur 曾让插件误判为前台而吃掉提醒（v1.0.5 修）。
 - **宿主半拿不到系统通知**：DSH Desktop 的宿主进程是纯 Node 进程（不是 Electron 主进程），没有 Electron 的 `Notification` 可用，所以插件的所有提醒都在浏览器半产生——这也正是"三个平台一套代码"的原因。
-- **已验证**：Windows 上的安装、三个 slot 条目注册、以及 22 条投递规则（见下）的离线验证；设置行与轻弹窗的文案/交互按 DSH 自带的 toast 与 switch 组件对齐。
+- **已验证**：Windows 上的安装、三个 slot 条目注册、以及 28 项离线断言（接线 / 国际化 / 两种后台信号 / 系统通道被拒时的降级 / 配置页诊断 / 全部投递规则）。
 - **未验证**：macOS 与 Linux 上的实际弹窗效果本机无法测试。结构上它们与 Windows 共用同一条通道、同一份代码，只有"权限被系统关闭时显示的开启路径"是分平台的。
 - 提醒只在 DSH 进程运行、页面打开时产生：**DSH 完全退出期间结束的会话不会再补发通知**。
 
@@ -72,12 +86,14 @@ D:\DeepSeek Harness Plugins\dsh-session-notify
 依赖的都是稳定契约：
 
 - 浏览器半只依赖 **slot 的标准 props**（`useSessions`、`useSessionStatus`）读取会话状态，这是 DSH 官方给插件读会话数据的方式；不轮询、不自己订阅会话事件、不读别的插件的 DOM；
-- 只往两个官方 slot 注册：`settings.general.item`（设置行）与 `shell.overlay`（两个条目：轻弹窗层 + 无渲染的观察器，内容永远是 `null`）；
+- 只往两个官方 slot 注册：`plugins.bundle.config`（本插件在插件页里的配置，key 就是包名）与 `shell.overlay`（两个条目：轻弹窗层 + 无渲染的观察器，内容永远是 `null`）；
+- **配置放在插件页**：`plugins.bundle.config` 的 key 取包名（`@dsh-plugin/session-notify`），插件页就会渲染这块配置；官方 `dsh-experimental-voice-input-bundle` 用的就是这个口子。行级口子是 `plugins.row.config`，key 形如 `<包名>#<行 id>`，会在该行上多出一个「配置」入口；
 - **不要**把"无渲染"条目放进 `sidebar.panellist`：该 slot 的宿主会把**每个条目的 id 当成一个左侧面板按钮**（`entriesOfSlot('sidebar.panellist')` → 面板列表，按钮文字取 `options.label ?? options.id`，条目本身作为图标内联渲染），放进去会在左侧多出一行空面板并挤坏侧边栏。本插件第一版踩过这个坑，现已改挂到通用浮层；
-- **文案必须注册字典**：`ctx.locale.register('session-notify', { zh, en })`，否则 `locale.bind(ns)` 在查不到该命名空间时会把 key 原样返回——界面上就会显示成 `settings.title` 这样的原始键（本插件第二版踩过这个坑）。注册会在 locale 修订号上打点，已经渲染出来的条目会自动换上文案，不需要刷新；
+- **文案必须注册字典**：`ctx.locale.register('session-notify', { zh, en })`，否则 `locale.bind(ns)` 在查不到该命名空间时会把 key 原样返回——界面上就会显示成 `settings.title` 这样的原始键（本插件第二版踩过这个坑）。注册会在 locale 修订号上打点，已经渲染出来的部件会自动换上文案，不需要刷新；
+- **前台/后台要现读、不能只靠事件**：桌面外壳里 `blur` 可能不到，只记事件会让插件一直以为在前台而吃掉系统通知（本插件第三版踩过这个坑）。现在每次投递都读 `document.visibilityState` 与 `document.hasFocus()`；
 - 另外自带一份本地字典兜底：即使拿不到框架的 `t`、或 locale 服务没有保存注册，也会渲染中文/英文文案而不是原始键；
 - 样式只用主题 token，不 import 任何 `@deepseek-ai/dsh-client-*` 包（规范要求，也是渲染不被上游改动打断的前提）；
-- 宿主半不声明 `inject`、不注册服务、不注册路由。
+- 宿主半不声明 `inject`、不注册服务、不注册路由；三个开关存浏览器本地，不改 DSH 的配置文件。
 
 上游若改动 slot 名或 hook 名：注册会静默跳过而不是把页面弄坏，插件会退化成"不提醒"；这类情况请按上面的契约名核对。
 
@@ -85,12 +101,14 @@ D:\DeepSeek Harness Plugins\dsh-session-notify
 
 `client.js` 是纯 JavaScript、浏览器端运行，可以在 Node 里用桩模块加载器评估并驱动：
 
-- 模块接线：加载后返回的插件、`inject` 声明、注册集合（含"观察器绝不在 `sidebar.*` 里"这一条）；
-- 国际化：字典已注册且中英键集合一致、设置行与弹窗渲染出的每个字符串都不是原始键、拿不到框架 `t` 时本地字典兜底、locale 服务不保存注册时仍然有文案；
-- 渲染健壮性：各组件在空状态 / 权限被拒 / 无 Notification API 下渲染都不报错；
-- 投递规则：完成提醒一次、当前会话不打扰、后台走系统通知、授权/提问各提醒一次、运行中延后、子会话跳过、空白会话跳过、历史不补发、开关生效、弹窗自动消失等。
+- 模块接线：插件返回值、注册集合（含"配置挂在插件页""观察器绝不在 `sidebar.*` 里"这两条）；
+- 国际化：字典中英键集合一致且没有死键、插件页与弹窗渲染出的每个字符串都不是原始键、拿不到框架 `t` 时本地字典兜底；
+- 前台/后台判定：**只给"页面不可见"信号**、或**只给"文档失焦"信号**（都不发 blur 事件）时，都必须走系统通知；
+- 系统通道被拒时降级：构造器抛错时改用轻弹窗，并在配置页写明被拒；
+- 配置页诊断：窗口状态、观察器健康、最近一次投递的通道与时间都能渲染；
+- 投递规则：完成提醒一次、当前会话不打扰、授权/提问各提醒一次、运行中延后、子会话跳过、空白会话跳过、历史不补发等。
 
-合计 44 项断言。
+合计 28 项断言。
 
 ## License
 

client.js

@@ -36,6 +36,8 @@ window.__ModuleLoader__.load({
 
     /** Locale namespace owned by this package. */
     const NS = 'session-notify'
+    /** This package's name: the plugin manager keys a bundle's configuration by it. */
+    const PACKAGE_NAME = '@dsh-plugin/session-notify'
     /** Trigger ids shared by the store, the copy table, and the settings row. */
     const KINDS = ['completion', 'approval', 'question']
     /** Pending-interaction kinds the Harness itself renders, and this plugin serves. */
@@ -71,7 +73,8 @@ window.__ModuleLoader__.load({
       'settings.permission.hint.mac': '系统设置 → 通知 → DeepSeek Harness',
       'settings.permission.hint.linux': '在桌面环境的通知设置（GNOME / KDE）中允许 DeepSeek Harness',
       'settings.action.allow': '允许通知',
-      'settings.action.test': '测试通知',
+      'settings.action.testSystem': '测试系统通知',
+      'settings.action.testAny': '测试提醒',
       'settings.action.unsupported': '不可用',
       'settings.permission.promptFailed': '无法请求通知权限：{message}',
       'settings.health.watching': '正在监听会话状态',
@@ -82,6 +85,22 @@ window.__ModuleLoader__.load({
       'settings.kind.completion': '完成',
       'settings.kind.approval': '授权',
       'settings.kind.question': '提问',
+      'config.section.kinds': '提醒内容',
+      'config.section.permission': '系统通知权限',
+      'config.section.status': '运行状态',
+      'config.intro': '提醒都从当前页面发出：窗口不在前台时是系统通知，窗口在前台时是这里的轻弹窗。',
+      'config.saveNote': '开关保存在浏览器本地，重装插件不会丢失。',
+      'config.testHint': '这里的按钮直接走系统通知通道，用来验证系统通知本身是否可用（窗口在前台也照发）。',
+      'config.testAny': '测试提醒',
+      'config.testSystem': '测试系统通知',
+      'config.diag.window': '窗口状态',
+      'config.diag.inFront': '在前台（会走轻弹窗）',
+      'config.diag.away': '不在前台（会走系统通知）',
+      'config.diag.last': '最近一次投递',
+      'config.diag.none': '还没有投递过',
+      'config.diag.system': '系统通知',
+      'config.diag.popup': '应用内轻弹窗',
+      'config.diag.refused': '系统通知被拒绝，改用了轻弹窗',
     }
     const en = {
       'notification.completion': 'Conversation finished',
@@ -106,7 +125,8 @@ window.__ModuleLoader__.load({
       'settings.permission.hint.mac': 'System Settings → Notifications → DeepSeek Harness',
       'settings.permission.hint.linux': 'Allow DeepSeek Harness in your desktop notification settings (GNOME / KDE)',
       'settings.action.allow': 'Allow notifications',
-      'settings.action.test': 'Test notification',
+      'settings.action.testSystem': 'Test system notification',
+      'settings.action.testAny': 'Test alert',
       'settings.action.unsupported': 'Unavailable',
       'settings.permission.promptFailed': 'Could not request notification permission: {message}',
       'settings.health.watching': 'Watching session status',
@@ -117,42 +137,64 @@ window.__ModuleLoader__.load({
       'settings.kind.completion': 'Finished',
       'settings.kind.approval': 'Approval',
       'settings.kind.question': 'Questions',
+      'config.section.kinds': 'What to notify about',
+      'config.section.permission': 'System notification permission',
+      'config.section.status': 'Status',
+      'config.intro': 'Every alert comes from this page: a system notification while the window is in the background, the light popup here while it is in the foreground.',
+      'config.saveNote': 'The switches are stored in this browser and survive reinstalling the plugin.',
+      'config.testHint': 'The buttons here go straight to the system channel, so you can verify it on its own (they fire even while the window is in front).',
+      'config.testAny': 'Test alert',
+      'config.testSystem': 'Test system notification',
+      'config.diag.window': 'Window',
+      'config.diag.inFront': 'in front (popup is used)',
+      'config.diag.away': 'not in front (system notification is used)',
+      'config.diag.last': 'Last delivery',
+      'config.diag.none': 'nothing delivered yet',
+      'config.diag.system': 'system notification',
+      'config.diag.popup': 'in-app popup',
+      'config.diag.refused': 'system channel refused, popup was used instead',
     }
 
     /**
      * Every declaration below belongs to this package. The popup copies the
      * shipped toast surface (a fixed entry in the frame-wide overlay, the
      * `--dsw-alias-toast-bg` / `--dsw-alias-toast-label` pair, `--dsw-radius-lg`,
-     * `--dsw-shadow-lv3`), the switch copies `Switch.module.css` behavior and
-     * proportion, and the settings row copies the General-section row pattern.
+     * `--dsw-shadow-lv3`) and adds a title line above the text; the switch copies
+     * `Switch.module.css` behavior and proportion; the configuration sections
+     * follow the Plugin Manager page's own section rhythm (a column, 32px apart).
      * Class names are renamed under `dsn-`; only the popup glyphs carry their own
      * artwork colors.
      */
     const CSS = `
 .dsn-stack{position:fixed;top:40px;right:24px;z-index:1100;display:flex;flex-direction:column;align-items:flex-end;gap:8px;pointer-events:none}
 @media (max-width:520px){.dsn-stack{right:12px}}
-.dsn-toast{box-sizing:border-box;pointer-events:auto;display:flex;align-items:center;gap:10px;width:max-content;max-width:min(420px,calc(100vw - 48px));padding:12px 16px;border-radius:var(--dsw-radius-lg);background:var(--dsw-alias-toast-bg);color:var(--dsw-alias-toast-label);font-size:14px;line-height:22px;box-shadow:var(--dsw-shadow-lv3);animation:dsn-toast-in 160ms ease-out}
+.dsn-toast{box-sizing:border-box;pointer-events:auto;display:flex;align-items:flex-start;gap:10px;width:max-content;max-width:min(420px,calc(100vw - 48px));padding:12px 12px 12px 16px;border-radius:var(--dsw-radius-lg);background:var(--dsw-alias-toast-bg);color:var(--dsw-alias-toast-label);font-size:14px;line-height:22px;box-shadow:var(--dsw-shadow-lv3);animation:dsn-toast-in 160ms ease-out}
 @keyframes dsn-toast-in{from{opacity:0;transform:translateX(8px)}to{opacity:1;transform:translateX(0)}}
 @media (prefers-reduced-motion: reduce){.dsn-toast{animation:none}}
-.dsn-toast-icon{display:grid;place-items:center;flex:none;color:var(--dsw-alias-state-warn-label)}
+.dsn-toast-icon{display:grid;place-items:center;flex:none;height:22px;color:var(--dsw-alias-state-warn-label)}
 .dsn-toast-icon.is-completion{color:var(--dsw-alias-state-success-primary)}
 .dsn-toast-icon.is-question{color:var(--dsw-alias-brand-primary)}
-.dsn-toast-text{min-width:0}
-.dsn-toast-action{padding:0;border:0;background:none;color:var(--dsw-static-deepseek-400);font:inherit;cursor:pointer;margin-inline:3px}
-.dsn-toast-action:hover{opacity:.8}
+.dsn-toast-text{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}
+.dsn-toast-title{font-weight:500;font-size:14px;line-height:22px}
+.dsn-toast-desc{color:var(--dsw-alias-toast-label);opacity:.8;font-size:13px;line-height:20px;overflow-wrap:break-word}
+.dsn-toast-actions{display:flex;align-items:center;gap:2px;flex:none}
+.dsn-toast-action{display:inline-flex;align-items:center;height:28px;padding:0 8px;border:0;border-radius:var(--dsw-radius-sm);background:none;color:var(--dsw-static-deepseek-400);font:inherit;font-size:13px;line-height:20px;cursor:pointer}
+.dsn-toast-action:hover{background:var(--dsw-alias-interactive-bg-hover)}
 .dsn-toast-action:focus-visible{outline:var(--dsw-focus-ring-width) solid var(--dsw-focus-ring-color,var(--dsw-alias-state-business-primary));outline-offset:2px}
-.dsn-toast-close{flex:none;display:inline-flex;align-items:center;justify-content:center;width:18px;height:18px;border:0;border-radius:var(--dsw-radius-xs);background:transparent;color:var(--dsw-alias-toast-label);opacity:.7;cursor:pointer}
-.dsn-toast-close:hover{opacity:1}
+.dsn-toast-close{flex:none;display:inline-flex;align-items:center;justify-content:center;width:28px;height:28px;border:0;border-radius:var(--dsw-radius-sm);background:transparent;color:var(--dsw-alias-toast-label);opacity:.8;cursor:pointer}
+.dsn-toast-close:hover{background:var(--dsw-alias-interactive-bg-hover);opacity:1}
 .dsn-toast-close:focus-visible{outline:var(--dsw-focus-ring-width) solid var(--dsw-focus-ring-color,var(--dsw-alias-state-business-primary));outline-offset:2px}
-.dsn-row{border-bottom:.5px solid var(--dsw-alias-border-l2);align-items:center;gap:8px;padding:16px 0;display:flex}
-.dsn-row-text{flex-direction:column;flex:1;gap:4px;min-width:0;padding-right:48px;display:flex}
-.dsn-row-title{color:var(--dsw-alias-label-primary);font-size:14px;font-weight:400;line-height:22px}
-.dsn-row-desc{color:var(--dsw-alias-label-tertiary);font-size:12px;font-weight:400;line-height:18px}
-.dsn-status{color:var(--dsw-alias-label-secondary);font-size:12px;line-height:18px}
-.dsn-status + .dsn-status,.dsn-row-desc + .dsn-status,.dsn-kinds + .dsn-status{margin-top:8px}
+.dsn-sections{display:flex;flex-direction:column;gap:24px}
+.dsn-section{display:flex;flex-direction:column;gap:10px}
+.dsn-section-title{margin:0;color:var(--dsw-alias-label-primary);font-size:14px;font-weight:500;line-height:22px}
+.dsn-section-desc{margin:0;color:var(--dsw-alias-label-tertiary);font-size:12px;line-height:18px}
+.dsn-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px 0;border-bottom:.5px solid var(--dsw-alias-border-l2)}
+.dsn-row:last-child{border-bottom:0}
+.dsn-row-text{display:flex;flex-direction:column;gap:2px;min-width:0}
+.dsn-row-title{color:var(--dsw-alias-label-primary);font-size:14px;line-height:22px}
+.dsn-row-desc{color:var(--dsw-alias-label-tertiary);font-size:12px;line-height:18px}
+.dsn-status{margin:0;color:var(--dsw-alias-label-secondary);font-size:12px;line-height:18px}
 .dsn-status-error{color:var(--dsw-alias-state-error-primary)}
-.dsn-kinds{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:10px;color:var(--dsw-alias-label-tertiary);font-size:12px;line-height:18px}
-.dsn-kind{display:inline-flex;align-items:center;gap:6px;color:var(--dsw-alias-label-secondary)}
 .dsn-switch{box-sizing:border-box;position:relative;flex:0 0 auto;width:36px;height:20px;padding:2px;border:0;border-radius:999px;background:var(--dsw-alias-border-l3);cursor:pointer}
 .dsn-switch[aria-checked='true']{background:var(--dsw-alias-brand-primary)}
 .dsn-switch:disabled{cursor:default;opacity:.5}
@@ -291,13 +333,33 @@ window.__ModuleLoader__.load({
       return 'default'
     }
 
+    /**
+     * Whether the Harness window is somewhere the user cannot see the app.
+     *
+     * Two independent browser facts are consulted, and ANY of them counts as "not
+     * in the foreground": the page's visibility and the document's focus. They are
+     * read at delivery time rather than remembered from an event, because a missed
+     * blur in the desktop shell made this plugin believe the window was in front
+     * and swallow the alert.
+     * @returns whether the alert must go to the system notification channel.
+     */
+    function windowIsAway() {
+      try {
+        if (document.visibilityState === 'hidden') return true
+      } catch {
+        /* an unreadable visibility state leaves the focus fact */
+      }
+      try {
+        if (typeof document.hasFocus === 'function') return !document.hasFocus()
+      } catch {
+        /* an unreadable focus state leaves the default below */
+      }
+      return false
+    }
+
     /** Read the window's live focus state rather than a cached value. */
     function currentFocus() {
-      try {
-        return typeof document.hasFocus === 'function' ? document.hasFocus() : true
-      } catch {
-        return true
-      }
+      return !windowIsAway()
     }
 
     /** Focus the window without letting a refusal stop the navigation. */
@@ -436,6 +498,42 @@ window.__ModuleLoader__.load({
       }
     }
 
+    /** Storage key for this package's own preferences. */
+    const STORAGE_KEY = 'dsh-plugin/session-notify'
+
+    /**
+     * Read this package's stored trigger switches.
+     *
+     * These are browser preferences rather than cordis configuration, so they live
+     * in this origin's own storage instead of the profile's patch file: the plugin
+     * writes nothing into DSH's configuration, and every read is defensive because
+     * storage can be unavailable or hold something an older version wrote.
+     * @returns the stored switches, defaulting to everything on.
+     */
+    function readStoredKinds() {
+      const kinds = { completion: true, approval: true, question: true }
+      try {
+        const raw = globalThis.localStorage?.getItem(STORAGE_KEY)
+        if (typeof raw !== 'string' || raw === '') return kinds
+        const stored = JSON.parse(raw)
+        for (const kind of KINDS) {
+          if (typeof stored?.[kind] === 'boolean') kinds[kind] = stored[kind]
+        }
+      } catch {
+        /* unreadable or foreign storage keeps the defaults */
+      }
+      return kinds
+    }
+
+    /** Store one trigger switch, ignoring storage that refuses to write. */
+    function writeStoredKinds(kinds) {
+      try {
+        globalThis.localStorage?.setItem(STORAGE_KEY, JSON.stringify(kinds))
+      } catch {
+        /* a refused write leaves the switches live for this page only */
+      }
+    }
+
     /**
      * Install the plugin.
      * @param ctx - Client root context providing `slots` and `locale`.
@@ -446,13 +544,14 @@ window.__ModuleLoader__.load({
 
       const store = createStore({
         permission: notificationPermission(),
-        kinds: { completion: true, approval: true, question: true },
+        kinds: readStoredKinds(),
         toasts: [],
         promptError: '',
         health: { state: 'starting', message: '' },
+        lastDelivery: null,
       })
       const notify = (message) => {
-        report(`session-notify: ${message}`)
+        report(message)
       }
       /** Every component translates through this: the slot's own seat when the owner supplies one, else the locale service. */
       const seatFor = (props) => (typeof props.t === 'function' ? props.t : t)
@@ -467,7 +566,6 @@ window.__ModuleLoader__.load({
         live: {
           list: undefined,
           status: undefined,
-          focus: true,
         },
       }
       const timers = new Map()
@@ -539,13 +637,18 @@ window.__ModuleLoader__.load({
         timers.delete(id)
       }
 
-      /** Show one light in-app popup. */
+      /**
+       * Show one light in-app popup: the trigger as the title, the conversation
+       * and its detail as the description, so the heading says what happened and
+       * the line under it says where.
+       */
       const showToast = (candidate) => {
         const notice = copyFor(candidate)
         state.toastSeq += 1
         const toast = {
           id: `dsn-${String(state.toastSeq)}`,
           kind: notice.kind,
+          title: notice.title,
           body: notice.body,
           sessionId: candidate.sessionId,
         }
@@ -573,12 +676,15 @@ window.__ModuleLoader__.load({
         }
       }
 
-      /** Raise one system notification, tolerating every refusal a browser may give. */
+      /**
+       * Raise one system notification, tolerating every refusal a browser may give.
+       * @returns the outcome the config page reports, so a refusal is never silent.
+       */
       const systemNotify = (candidate, force) => {
         const Ctor = globalThis.Notification
         const permission = notificationPermission()
-        if (permission === 'unsupported') return false
-        if (!force && permission !== 'granted') return false
+        if (permission === 'unsupported') return 'unsupported'
+        if (!force && permission !== 'granted') return 'permission'
         try {
           const notice = copyFor(candidate)
           const options = {
@@ -597,10 +703,10 @@ window.__ModuleLoader__.load({
               /* close is best effort on every platform */
             }
           }
-          return true
+          return 'raised'
         } catch (error) {
           notify(`system notification failed: ${text(error)}`)
-          return false
+          return 'threw'
         }
       }
 
@@ -616,6 +722,25 @@ window.__ModuleLoader__.load({
         return false
       }
 
+      /**
+       * Record what actually happened to the newest alert.
+       *
+       * Everything on the delivery path used to fail invisibly: the alert simply
+       * never appeared, with no way to tell a wrong channel decision from a
+       * refused constructor. The config page shows this record, so the next
+       * question ("did it even try?") has an answer.
+       */
+      const recordDelivery = (outcome, candidate) => {
+        store.set({
+          ...store.getSnapshot(),
+          lastDelivery: {
+            outcome,
+            at: new Date().toISOString().slice(11, 19),
+            title: copyFor(candidate).title,
+          },
+        })
+      }
+
       /**
        * Whether a queued candidate is still worth delivering. Read from the LIVE
        * snapshot rather than the one captured when the transition was seen: a
@@ -635,9 +760,12 @@ window.__ModuleLoader__.load({
 
       /**
        * Deliver one candidate through exactly one channel: the system
-       * notification while the window is in the background, the light popup while
-       * it is in the foreground, and nothing at all for the conversation on
-       * screen.
+       * notification while the window is away, the light popup while it is in
+       * front, and nothing at all for the conversation on screen.
+       *
+       * The channel decision reads the window state right here, at delivery time,
+       * instead of trusting the state the observer last remembered — that is what
+       * an unreported blur used to defeat.
        */
       const deliver = (candidate, ignoreThrottle) => {
         if (ignoreThrottle !== true) {
@@ -645,12 +773,21 @@ window.__ModuleLoader__.load({
           if (now - state.lastDelivery < THROTTLE_MS) return
           state.lastDelivery = now
         }
-        if (state.live.focus) {
-          if (!isOnScreen(candidate.sessionId, state.live.list)) showToast(candidate)
+        if (!windowIsAway()) {
+          if (isOnScreen(candidate.sessionId, state.live.list)) return
+          showToast(candidate)
+          recordDelivery('popup', candidate)
           return
         }
-        if (systemNotify(candidate, candidate.test === true)) return
-        if (candidate.test === true) showToast(candidate)
+        const outcome = systemNotify(candidate, candidate.test === true)
+        if (outcome === 'raised') {
+          recordDelivery('system', candidate)
+          return
+        }
+        // A test alert still has to reach the user, and so does a real one when
+        // the system channel refuses: the popup is the channel that remains.
+        showToast(candidate)
+        recordDelivery(`system-refused-${outcome}`, candidate)
       }
 
       /**
@@ -677,11 +814,13 @@ window.__ModuleLoader__.load({
        * One derivation pass over the client's own session state: remember the
        * freshest snapshot for the settle tick, compare it against what this page
        * already observed, emit at most one candidate per transition, and let the
-       * settle tick decide delivery.
+       * settle tick decide delivery. The window state is deliberately NOT captured
+       * here — the delivery reads it fresh, because it can change inside the
+       * settle window.
        */
-      const observe = (focus, list, status) => {
+      const observe = (list, status) => {
         if (list === undefined || status === undefined) return
-        state.live = { list, status, focus }
+        state.live = { list, status }
         const kinds = store.getSnapshot().kinds
         for (const sessionId of Object.keys(list.byId ?? {})) {
           const summary = list.byId[sessionId]
@@ -741,18 +880,36 @@ window.__ModuleLoader__.load({
 
       // --------------------------------------------------------------- actions
 
-      /** Raise one test notification through the channel the current state selects. */
+      /** Build one test alert that skips the throttle and the "on screen" rule. */
+      const testCandidate = (title) => ({
+        kind: 'completion',
+        sessionId: 'test',
+        title,
+        detail: '',
+        pendingKind: '',
+        test: true,
+      })
+
+      /**
+       * Raise one test alert through whichever channel the window state selects.
+       * Verified from the config page, where the user is looking at the app, so it
+       * normally lands in the popup — the way to prove the system channel is to
+       * press the button in a channel-specific test instead.
+       */
       const sendTest = () => {
-        const candidate = {
-          kind: 'completion',
-          sessionId: 'test',
-          title: t('settings.title'),
-          detail: '',
-          pendingKind: '',
-          test: true,
+        deliver(testCandidate(t('config.testAny')), true)
+      }
+
+      /** Raise the test alert on the system channel specifically, whatever the focus is. */
+      const sendTestSystem = () => {
+        const candidate = testCandidate(t('config.testSystem'))
+        const outcome = systemNotify(candidate, true)
+        if (outcome === 'raised') {
+          recordDelivery('system', candidate)
+          return
         }
-        if (!currentFocus() && notificationPermission() === 'granted' && systemNotify(candidate, true)) return
         showToast(candidate)
+        recordDelivery(`system-refused-${outcome}`, candidate)
       }
 
       /** Request notification permission inside a user gesture, then report the outcome. */
@@ -780,10 +937,12 @@ window.__ModuleLoader__.load({
         if (notificationPermission() === 'granted') sendTest()
       }
 
-      /** Toggle one trigger. */
+      /** Toggle one trigger and remember the choice. */
       const setKindEnabled = (kind, enabled) => {
         const snapshot = store.getSnapshot()
-        store.set({ ...snapshot, kinds: { ...snapshot.kinds, [kind]: enabled } })
+        const kinds = { ...snapshot.kinds, [kind]: enabled }
+        writeStoredKinds(kinds)
+        store.set({ ...snapshot, kinds })
       }
 
       // ----------------------------------------------------------- components
@@ -793,21 +952,27 @@ window.__ModuleLoader__.load({
         return React.useSyncExternalStore(source.subscribe, source.getSnapshot, source.getSnapshot)
       }
 
-      /** The window's focus state as a React value, kept current by the DOM's own events. */
-      function useFocus() {
+      /**
+       * Subscribe to every browser signal that says whether the app is visible:
+       * the window's focus events and the document's visibility change. The value
+       * itself is a boolean, so the observer re-renders once per transition.
+       */
+      function useWindowState() {
         const subscribe = React.useCallback((listener) => {
           try {
             window.addEventListener('focus', listener)
             window.addEventListener('blur', listener)
+            document.addEventListener('visibilitychange', listener)
           } catch {
             return () => {}
           }
           return () => {
             window.removeEventListener('focus', listener)
             window.removeEventListener('blur', listener)
+            document.removeEventListener('visibilitychange', listener)
           }
         }, [])
-        return React.useSyncExternalStore(subscribe, currentFocus, () => true)
+        return React.useSyncExternalStore(subscribe, () => !windowIsAway(), () => true)
       }
 
       /**
@@ -815,9 +980,13 @@ window.__ModuleLoader__.load({
        * how a plugin reaches the session hooks without occupying visible UI. It
        * renders `null`, and any failure in its own derivation is contained here so
        * a slot entry can never crash.
+       *
+       * It subscribes to the window state only so a foreground/background change
+       * re-derives promptly; the delivery itself re-reads that state, so a missed
+       * event can no longer pick the wrong channel.
        */
       function NotifyObserver(props) {
-        const focus = useFocus()
+        useWindowState()
         const useSessions = props.useSessions
         const useSessionStatus = props.useSessionStatus
         const select = React.useCallback((snapshot) => snapshot, [])
@@ -833,7 +1002,7 @@ window.__ModuleLoader__.load({
               applyHealth(store, { state: 'starting', message: '' })
               return
             }
-            observe(focus, list, status)
+            observe(list, status)
             applyHealth(store, { state: 'watching', message: '' })
           } catch (error) {
             applyHealth(store, { state: 'error', message: text(error) })
@@ -873,30 +1042,60 @@ window.__ModuleLoader__.load({
               onMouseLeave: () => props.arm(toast.id),
             },
             h('span', { className: `dsn-toast-icon is-${toast.kind}` }, h(KindIcon, { kind: toast.kind, size: 16 })),
-            h('span', { className: 'dsn-toast-text' }, toast.body),
-            h('button', {
-              type: 'button',
-              className: 'dsn-toast-action',
-              onClick: () => {
-                props.dismiss(toast.id)
-                props.open(toast.sessionId)
-              },
-            }, tr('toast.view')),
-            h('button', {
-              type: 'button',
-              className: 'dsn-toast-close',
-              'aria-label': tr('toast.dismiss'),
-              onClick: () => props.dismiss(toast.id),
-            }, h(CloseIcon, { size: 12 }))))))
+            h('div', { className: 'dsn-toast-text' },
+              h('div', { className: 'dsn-toast-title' }, toast.title),
+              h('div', { className: 'dsn-toast-desc' }, toast.body)),
+            h('div', { className: 'dsn-toast-actions' },
+              h('button', {
+                type: 'button',
+                className: 'dsn-toast-action',
+                onClick: () => {
+                  props.dismiss(toast.id)
+                  props.open(toast.sessionId)
+                },
+              }, tr('toast.view')),
+              h('button', {
+                type: 'button',
+                className: 'dsn-toast-close',
+                'aria-label': tr('toast.dismiss'),
+                onClick: () => props.dismiss(toast.id),
+              }, h(CloseIcon, { size: 14 })))))))
       }
 
-      /** The General-settings row: permission state, one action, per-trigger switches. */
-      function SettingsRow(props) {
+      /**
+       * One trigger switch row: the label says which notification it governs and
+       * the switch is the control, so the row never needs a second description.
+       */
+      function KindRow(props) {
+        return h('div', { className: 'dsn-row' },
+          h('div', { className: 'dsn-row-text' },
+            h('div', { className: 'dsn-row-title' }, props.label)),
+          h('button', {
+            type: 'button',
+            role: 'switch',
+            className: 'dsn-switch',
+            'aria-checked': props.checked,
+            'aria-label': props.label,
+            disabled: props.disabled,
+            onClick: props.onToggle,
+          }, h('span', { className: 'dsn-thumb' })))
+      }
+
+      /**
+       * This plugin's configuration, rendered on its own page in the plugin
+       * manager (`plugins.bundle.config`, keyed by this package's name).
+       *
+       * The owner asks for two views: `summary` (a one-liner that stands in for
+       * the row's description) and `page` (the whole form). Everything visible here
+       * belongs to this package, including the platform-specific permission hint.
+       */
+      function ConfigSection(props) {
         const snapshot = useOwnStore(props.store)
+        const tr = seatFor(props)
+        if (props.view === 'summary') return h(React.Fragment, null, tr('settings.description'))
         const permission = snapshot.permission
         const supported = permission !== 'unsupported'
         const failed = permission === 'denied' || snapshot.promptError !== ''
-        const tr = seatFor(props)
         const statusKey = permission === 'granted'
           ? 'settings.permission.granted'
           : permission === 'denied'
@@ -904,7 +1103,7 @@ window.__ModuleLoader__.load({
             : supported
               ? 'settings.permission.default'
               : 'settings.permission.unsupported'
-        const statusText = snapshot.promptError === ''
+        const permissionText = snapshot.promptError === ''
           ? `${tr(statusKey)}${permission === 'denied' || !supported ? ` · ${tr(`settings.permission.hint.${props.platform}`)}` : ''}`
           : snapshot.promptError
         const health = snapshot.health
@@ -915,39 +1114,69 @@ window.__ModuleLoader__.load({
             : health.state === 'error'
               ? tr('settings.health.error', { message: health.message })
               : tr('settings.health.starting')
+        const healthFailed = health.state !== 'watching' && health.state !== 'starting'
         return h(React.Fragment, null,
           h('style', null, CSS),
-          h('div', { className: 'dsn-row' },
-            h('div', { className: 'dsn-row-text' },
-              h('div', { className: 'dsn-row-title' }, tr('settings.title')),
-              h('div', { className: 'dsn-row-desc' }, tr('settings.description')),
-              h('div', {
-                className: `dsn-status${failed ? ' dsn-status-error' : ''}`,
-                role: failed ? 'alert' : 'status',
-              }, statusText),
-              h('div', {
-                className: `dsn-status${health.state === 'watching' || health.state === 'starting' ? '' : ' dsn-status-error'}`,
-                role: health.state === 'watching' || health.state === 'starting' ? 'status' : 'alert',
-              }, healthText),
-              h('div', { className: 'dsn-kinds' },
-                h('span', null, tr('settings.kinds.label')),
-                KINDS.map((kind) => h('span', { className: 'dsn-kind', key: kind },
-                  h('span', null, tr(`settings.kind.${kind}`)),
-                  h('button', {
-                    type: 'button',
-                    role: 'switch',
-                    className: 'dsn-switch',
-                    'aria-checked': snapshot.kinds[kind] === true,
-                    'aria-label': tr(`settings.kind.${kind}`),
-                    disabled: !supported,
-                    onClick: () => props.setKind(kind, snapshot.kinds[kind] !== true),
-                  }, h('span', { className: 'dsn-thumb' })))))),
-            h('button', {
-              type: 'button',
-              className: 'dsn-button',
-              disabled: !supported,
-              onClick: permission === 'granted' ? props.test : props.ask,
-            }, tr(!supported ? 'settings.action.unsupported' : permission === 'granted' ? 'settings.action.test' : 'settings.action.allow'))))
+          h('div', { className: 'dsn-sections' },
+            // The page header already shows this bundle's title and description, so
+            // this section opens with what the header cannot say: how alerts are
+            // carried, and what this form changes.
+            h('section', { className: 'dsn-section' },
+              h('p', { className: 'dsn-section-desc' }, tr('config.intro'))),
+            h('section', { className: 'dsn-section' },
+              h('h3', { className: 'dsn-section-title' }, tr('config.section.kinds')),
+              KINDS.map((kind) => h(KindRow, {
+                key: kind,
+                label: tr(`settings.kind.${kind}`),
+                checked: snapshot.kinds[kind] === true,
+                disabled: false,
+                onToggle: () => props.setKind(kind, snapshot.kinds[kind] !== true),
+              })),
+              h('p', { className: 'dsn-section-desc' }, tr('config.saveNote'))),
+            h('section', { className: 'dsn-section' },
+              h('h3', { className: 'dsn-section-title' }, tr('config.section.permission')),
+              h('div', { className: 'dsn-row' },
+                h('div', { className: 'dsn-row-text' },
+                  h('p', {
+                    className: `dsn-status${failed ? ' dsn-status-error' : ''}`,
+                    role: failed ? 'alert' : 'status',
+                  }, permissionText)),
+                h('button', {
+                  type: 'button',
+                  className: 'dsn-button',
+                  disabled: !supported,
+                  onClick: permission === 'granted' ? props.testSystem : props.ask,
+                }, tr(!supported
+                  ? 'settings.action.unsupported'
+                  : permission === 'granted' ? 'settings.action.testSystem' : 'settings.action.allow'))),
+              h('p', { className: 'dsn-section-desc' }, tr('config.testHint'))),
+            h('section', { className: 'dsn-section' },
+              h('h3', { className: 'dsn-section-title' }, tr('config.section.status')),
+              h('div', { className: 'dsn-row' },
+                h('div', { className: 'dsn-row-text' },
+                  h('p', { className: 'dsn-status' }, `${tr('config.diag.window')}: ${tr(windowIsAway() ? 'config.diag.away' : 'config.diag.inFront')}`),
+                  h('p', {
+                    className: `dsn-status${healthFailed ? ' dsn-status-error' : ''}`,
+                    role: healthFailed ? 'alert' : 'status',
+                  }, healthText),
+                  h('p', { className: 'dsn-status' }, deliveryText(tr))),
+                h('button', {
+                  type: 'button',
+                  className: 'dsn-button',
+                  onClick: props.testAny,
+                }, tr('settings.action.testAny'))))))
+      }
+
+      /** Describe the newest alert's fate in one line. */
+      function deliveryText(tr) {
+        const last = store.getSnapshot().lastDelivery
+        if (last === null || last === undefined) return tr('config.diag.none')
+        const outcome = last.outcome.startsWith('system-refused')
+          ? tr('config.diag.refused')
+          : last.outcome === 'system'
+            ? tr('config.diag.system')
+            : tr('config.diag.popup')
+        return `${tr('config.diag.last')}: ${last.at} · ${outcome} · ${last.title}`
       }
 
       // ---------------------------------------------------------- registration
@@ -1002,19 +1231,24 @@ window.__ModuleLoader__.load({
         }),
       }, ToastLayer))
 
-      ctx.slots.inject('settings.general.item', () => ctx.slots.register({
-        name: 'settings.general.item',
-        id: NS,
-        order: 97,
+      // This plugin's configuration lives on its own page in the plugin manager,
+      // keyed by this package's name — the seat the shipped experimental bundle
+      // uses for its own settings, and the one the plugin page renders between the
+      // bundle's description and its rows. It is deliberately NOT a General
+      // settings row: a plugin's options belong to the plugin.
+      ctx.slots.inject('plugins.bundle.config', () => ctx.slots.register({
+        name: 'plugins.bundle.config',
+        key: PACKAGE_NAME,
         locale: NS,
         inject: () => ({
           store,
           platform: platformKey(),
           ask: requestPermission,
-          test: sendTest,
+          testAny: sendTest,
+          testSystem: sendTestSystem,
           setKind: setKindEnabled,
         }),
-      }, SettingsRow))
+      }, ConfigSection))
 
       // The observer lives in the frame-wide overlay, NOT in `sidebar.panellist`.
       //

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@dsh-plugin/session-notify",
-  "version": "1.0.2",
+  "version": "1.0.5",
   "private": true,
   "type": "module",
   "description": "会话完成、需要授权、需要回答时提醒你：窗口不在前台用系统通知，窗口在前台用应用内轻弹窗。",