release: v0.5.0 — 覆盖率96.42%达标、lint零警告、覆盖率门禁、CI强化、发布自动化

- 覆盖率 96.42%（行）：新增 59 测试共 385 个，覆盖 DOM 交互事件、对话框按钮交互、Intl/localStorage 异常路径、React 渲染生命周期 - 测试环境重构：SSR 分支用 defineProperty 真正覆盖 document/window；新增 tests/dom.test.ts、tests/setup.ts - jest 覆盖率门禁 lines >= 95%；CI lint 改必过；新增 publish.yml（v* tag 自动发布到 Gitea registry） - 修复：Toast.off 空数组残留、Toast.on 取消函数 this 绑定、action close:false 冒泡关闭、use() 重复注册钩子、i18n catch 引用错误 - 删除死代码 autoApplySystemTheme；lint 零警告（no-console 策略 + caughtErrorsIgnorePattern）
2026-08-08 15:02:51 +08:00
parent bbff631f4f
commit 1f718c4ef8
41 changed files with 1146 additions and 281 deletions
@@ -14,9 +14,9 @@
  "plugins": ["@typescript-eslint"],
  "extends": ["eslint:recommended"],
  "rules": {
-    "no-console": "warn",
+    "no-console": "off",
    "no-unused-vars": "off",
-    "@typescript-eslint/no-unused-vars": ["warn", { "argsIgnorePattern": "^_", "varsIgnorePattern": "^_" }],
+    "@typescript-eslint/no-unused-vars": ["warn", { "argsIgnorePattern": "^_", "varsIgnorePattern": "^_", "caughtErrorsIgnorePattern": "^_" }],
    "@typescript-eslint/no-explicit-any": "warn",
    "prefer-const": "warn",
    "no-undef": "off",
@@ -31,10 +31,9 @@ jobs:

      - name: Lint
        run: npm run lint
-        continue-on-error: true

-      - name: Run tests
-        run: npx jest --forceExit --maxWorkers=2 --no-cache
+      - name: Run tests (coverage gate: lines >= 95%)
+        run: npx jest --forceExit --maxWorkers=2 --no-cache --coverage
        env:
          NODE_OPTIONS: --max-old-space-size=4096

@@ -0,0 +1,36 @@
+name: Publish
+
+on:
+  push:
+    tags: ['v*']
+
+jobs:
+  publish:
+    runs-on: debian-latest
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Use Node.js 20
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          registry-url: https://git.metona.cn/api/packages/MetonaTeam/npm/
+          cache: 'npm'
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Type check
+        run: npm run typecheck
+
+      - name: Run tests
+        run: npx jest --forceExit --maxWorkers=2 --no-cache --coverage
+
+      - name: Build
+        run: npm run build
+
+      - name: Publish to Gitea npm registry
+        run: npm publish --access public
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.PACKAGES_TOKEN }}
@@ -2,6 +2,28 @@

 All notable changes to MetonaToast will be documented in this file.

+## [0.5.0] - 2026-08-08
+
+### Changed
+- **覆盖率 96.42%（行）**：新增 59 个测试用例（共 385），覆盖 DOM 交互事件（click/drag/hover/animation）、confirm/prompt/action 按钮交互、Intl/localStorage 异常路径、React 渲染生命周期
+- **测试环境重构**：SSR 分支测试用 `Object.defineProperty` 真正覆盖 document/window（jsdom getter 使此前赋值无效）；新增 `tests/dom.test.ts`（jsdom 真实 DOM 事件驱动）、`tests/setup.ts`（TextEncoder 补丁）
+- **jest 覆盖率门禁**：`lines >= 95%`，未达标测试即失败
+
+### Fixed
+- **`Toast.off` 空数组残留**：移除全部钩子后删除 Map key（此前空数组残留导致 `_hooks.has()` 误报 true）
+- **`Toast.on` 返回的取消函数 this 绑定**：改用类名引用，任意调用上下文可用
+- **action 按钮 `close:false` 失效**：按钮 click 冒泡到 toast 的 closeOnClick 处理器导致总是关闭，已 stopPropagation 修复
+- **`use()` 重复注册钩子**：accessibility/persistence 预设的钩子注册改为防重复（先卸载旧钩子），并在插件 `uninstall` 中一并清理
+- **i18n catch 引用错误**：`catch {}` 中残留 `e` 引用导致的 ReferenceError（saveLocale/loadLocale/notifyLocaleListeners）
+- **删除残缺死代码**：`styles.autoApplySystemTheme`（无实际效果的占位实现）
+
+### Removed
+- **lint 零警告**：`no-console` 规则关闭（库的错误报告依赖 console，生产构建已由 terser `drop_console` 剥离）；catch 变量通过 `caughtErrorsIgnorePattern` 豁免
+
+### Added
+- **Gitea Actions 发布自动化**：`publish.yml` — 推送 `v*` tag 时自动 测试+构建+发布到 Gitea npm registry（需配置 `PACKAGES_TOKEN` secret）
+- **CI 强化**：lint 改为必过（移除 continue-on-error）；测试命令带覆盖率门禁
+
 ## [0.4.0] - 2026-08-08

 ### Added
@@ -5,7 +5,7 @@ Object.defineProperty(exports, '__esModule', { value: true });
 /**
 * MetonaToast Utils — 工具函数
 * @module utils
- * @version 0.4.0
+ * @version 0.5.0
 */
 /**
 * 生成唯一ID
@@ -42,7 +42,7 @@ const prefersDark = () => {
 /**
 * MetonaToast Icons — 图标SVG定义
 * @module icons
- * @version 0.4.0
+ * @version 0.5.0
 * @description 107 个内置 SVG 图标
 */
 const ICONS = {
@@ -539,7 +539,7 @@ const ICONS = {
 /**
 * MetonaToast Locales — 国际化翻译数据
 * @module locales
- * @version 0.4.0
+ * @version 0.5.0
 * @description 内置 zh-CN / en-US 完整翻译
 */
 const LOCALES = {
@@ -1026,12 +1026,12 @@ const LOCALES = {
 /**
 * MetonaToast Constants — 常量定义
 * @module constants
- * @version 0.4.0
+ * @version 0.5.0
 */
 /**
 * 版本号 — 唯一来源，发布时只需修改此处
 */
-const VERSION = '0.4.0';
+const VERSION = '0.5.0';
 /**
 * 默认配置
 */
@@ -1298,7 +1298,7 @@ const ANIMATION_TYPES = ['slide', 'fade', 'scale', 'bounce', 'flip', 'rotate', '
 /**
 * MetonaToast Styles — 样式管理
 * @module styles
- * @version 0.4.0
+ * @version 0.5.0
 */
 // 样式缓存
 let styleElement = null;
@@ -1787,7 +1787,7 @@ const injectStyles = () => {
 /**
 * MetonaToast Themes — 主题管理
 * @module themes
- * @version 0.4.0
+ * @version 0.5.0
 */
 // 当前主题状态
 let currentTheme = 'auto';
@@ -2131,7 +2131,7 @@ const themeUtils = {
 /**
 * MetonaToast i18n — 国际化管理
 * @module i18n
- * @version 0.4.0
+ * @version 0.5.0
 */
 // 当前语言状态
 let currentLocale = 'zh-CN';
@@ -2499,7 +2499,7 @@ const formatNumber = (number, options = {}) => {
    try {
        return new Intl.NumberFormat(currentLocale, options).format(number);
    }
-    catch (e) {
+    catch {
        return number.toString();
    }
 };
@@ -2514,7 +2514,7 @@ const formatCurrency = (amount, currency = 'USD', options = {}) => {
            ...options,
        }).format(amount);
    }
-    catch (e) {
+    catch {
        return amount.toString();
    }
 };
@@ -2530,7 +2530,7 @@ const formatPercent = (value, options = {}) => {
            ...options,
        }).format(value / 100);
    }
-    catch (e) {
+    catch {
        return `${value}%`;
    }
 };
@@ -2542,7 +2542,7 @@ const formatDate = (date, options = {}) => {
        const dateObj = date instanceof Date ? date : new Date(date);
        return new Intl.DateTimeFormat(currentLocale, options).format(dateObj);
    }
-    catch (e) {
+    catch {
        return String(date);
    }
 };
@@ -2586,7 +2586,7 @@ const formatRelativeTime = (date, options = {}) => {
        }
        return String(date);
    }
-    catch (e) {
+    catch {
        return String(date);
    }
 };
@@ -2613,7 +2613,7 @@ const formatPlural = (count, options = {}) => {
    try {
        return new Intl.PluralRules(currentLocale, options).select(count);
    }
-    catch (e) {
+    catch {
        return count === 1 ? 'one' : 'other';
    }
 };
@@ -2806,7 +2806,7 @@ const animationUtils = {
 /**
 * MetonaToast Toast — Toast 类
 * @module toast
- * @version 0.4.0
+ * @version 0.5.0
 */
 /**
 * Toast 类 — 核心通知组件
@@ -2825,12 +2825,19 @@ class Toast {
        if (!this._hooks.has(name))
            this._hooks.set(name, []);
        this._hooks.get(name).push(fn);
-        return () => this.off(name, fn);
+        // 用类名引用而非 this，保证返回的取消函数在任意调用上下文可用
+        return () => Toast.off(name, fn);
    }
    static off(name, fn) {
        const list = this._hooks.get(name);
-        if (list)
-            this._hooks.set(name, list.filter(f => f !== fn));
+        if (list) {
+            const next = list.filter(f => f !== fn);
+            // 空数组直接删除 key，避免残留
+            if (next.length === 0)
+                this._hooks.delete(name);
+            else
+                this._hooks.set(name, next);
+        }
    }
    /**
     * 触发钩子 — 如果任意钩子返回 false 则整体返回 false
@@ -3438,7 +3445,7 @@ const _containerCache = new Map();
 /**
 * MetonaToast Templates — HTML 模板辅助函数
 * @module templates
- * @version 0.4.0
+ * @version 0.5.0
 * @description confirm / prompt / progress / action 的 DOM 模板
 */
 /**
@@ -3510,7 +3517,7 @@ const actionHTML = (actions) => {
 /**
 * MetonaToast Plugins — 插件系统
 * @module plugins
- * @version 0.4.0
+ * @version 0.5.0
 */
 /**
 * 插件管理器
@@ -3665,6 +3672,12 @@ const presetPlugins = {
                }
                catch (_e) { /* noop */ }
            }
+            // 卸载 use() 注册的配置保存钩子
+            const meta = this;
+            if (typeof meta._saveOff === 'function') {
+                meta._saveOff();
+                meta._saveOff = null;
+            }
        },
    },
    /**
@@ -3687,6 +3700,14 @@ const presetPlugins = {
            setTimeout(() => { if (el.parentNode)
                el.parentNode.removeChild(el); }, 3000);
        },
+        uninstall() {
+            // 卸载 use() 注册的朗读钩子
+            const meta = this;
+            if (typeof meta._off === 'function') {
+                meta._off();
+                meta._off = null;
+            }
+        },
    },
    /**
     * 去重插件 — 相同 type + message 的 toast 自动合并（更新已有的一条）
@@ -3756,7 +3777,7 @@ const defaultPluginManager = new PluginManager();
 /**
 * MetonaToast API — meToast 核心 API 对象
 * @module api
- * @version 0.4.0
+ * @version 0.5.0
 */
 /**
 * 参数标准化工具
@@ -4092,12 +4113,14 @@ const meToast = {
                actions.forEach((a, i) => {
                    const btn = toast.el?.querySelector(`.met-action-btn-${i}`);
                    if (btn && typeof a.onClick === 'function') {
-                        btn.addEventListener('click', () => {
+                        btn.addEventListener('click', (e) => {
+                            // 阻止冒泡到 toast 的 closeOnClick 处理器，由 close 选项控制是否关闭
+                            e.stopPropagation();
                            try {
                                a.onClick(toast);
                            }
-                            catch (e) {
-                                console.error('Action onClick error:', e);
+                            catch (err) {
+                                console.error('Action onClick error:', err);
                            }
                            if (a.close !== false)
                                toast.close();
@@ -4334,25 +4357,37 @@ const meToast = {
                return this;
            }
            this.plugins.register(plugin, { ...preset, ...options });
-            // 连接插件钩子
+            // 连接插件钩子（重复 use 前先卸载旧钩子，防止重复注册）
+            // 注意：off 引用存在已注册的插件对象上（stored），uninstall 时 this 即该对象
+            const stored = this.plugins.get(plugin);
            if (plugin === 'accessibility') {
-                Toast.on('afterShow', (toast) => {
-                    const acc = preset;
-                    if (typeof acc.announce === 'function')
-                        acc.announce(toast);
-                });
+                if (stored && typeof stored._off === 'function') {
+                    stored._off();
+                }
+                const acc = preset;
+                if (stored) {
+                    stored._off = Toast.on('afterShow', (toast) => {
+                        if (typeof acc.announce === 'function')
+                            acc.announce(toast);
+                    });
+                }
            }
            if (plugin === 'persistence') {
+                if (stored && typeof stored._saveOff === 'function') {
+                    stored._saveOff();
+                }
                const saved = typeof preset.install === 'function'
                    ? preset.install(this.plugins)
                    : null;
                if (saved)
                    this.configure(saved);
-                Toast.on('afterClose', () => {
-                    const p = preset;
-                    if (typeof p.save === 'function')
-                        p.save(this.getConfig());
-                });
+                const p = preset;
+                if (stored) {
+                    stored._saveOff = Toast.on('afterClose', () => {
+                        if (typeof p.save === 'function')
+                            p.save(this.getConfig());
+                    });
+                }
            }
        }
        else if (plugin && typeof plugin === 'object') {
@@ -4428,7 +4463,7 @@ Toast.setCallbacks({
 /**
 * MetonaToast — 轻量级Toast通知库
 * @module metona-toast
- * @version 0.4.0
+ * @version 0.5.0
 * @author thzxx
 * @license MIT
 */
@@ -1,7 +1,7 @@
 /**
 * MetonaToast — 核心类型定义
 * @module types
- * @version 0.4.0
+ * @version 0.5.0
 */
 /** Toast 通知类型（107种内置图标类型） */
 type ToastType = 'default' | 'success' | 'error' | 'warning' | 'info' | 'loading' | 'check' | 'x' | 'alert' | 'question' | 'star' | 'heart' | 'bell' | 'mail' | 'settings' | 'user' | 'home' | 'search' | 'plus' | 'minus' | 'edit' | 'trash' | 'download' | 'upload' | 'share' | 'link' | 'external' | 'clock' | 'calendar' | 'map' | 'compass' | 'globe' | 'wifi' | 'cloud' | 'sun' | 'moon' | 'zap' | 'activity' | 'cpu' | 'database' | 'server' | 'terminal' | 'code' | 'git' | 'package' | 'layers' | 'grid' | 'list' | 'filter' | 'sort' | 'refresh' | 'sync' | 'power' | 'battery' | 'bluetooth' | 'volume' | 'mic' | 'camera' | 'image' | 'video' | 'music' | 'file' | 'folder' | 'clipboard' | 'save' | 'print' | 'eye' | 'eyeOff' | 'lock' | 'unlock' | 'shield' | 'key' | 'flag' | 'bookmark' | 'tag' | 'gift' | 'award' | 'target' | 'crosshair' | 'move' | 'maximize' | 'minimize' | 'copy' | 'cut' | 'paste' | 'rotateCw' | 'rotateCcw' | 'zoomIn' | 'zoomOut' | 'crop' | 'sliders' | 'toggleLeft' | 'toggleRight' | 'checkCircle' | 'xCircle' | 'alertCircle' | 'infoCircle' | 'helpCircle' | 'alertTriangle' | 'checkSquare' | 'square' | 'circle' | 'triangle' | 'hexagon' | 'octagon' | 'pentagon' | 'diamond';
@@ -418,7 +418,7 @@ declare global {
 /**
 * MetonaToast Toast — Toast 类
 * @module toast
- * @version 0.4.0
+ * @version 0.5.0
 */

 /**
@@ -492,13 +492,13 @@ declare class Toast implements ToastInstance {
 /**
 * MetonaToast Constants — 常量定义
 * @module constants
- * @version 0.4.0
+ * @version 0.5.0
 */

 /**
 * 版本号 — 唯一来源，发布时只需修改此处
 */
-declare const VERSION = "0.4.0";
+declare const VERSION = "0.5.0";

 /**
 * 增强的 MeToast 对象 — 在 meToast 基础上注入子模块
@@ -1,7 +1,7 @@
 /**
 * MetonaToast Utils — 工具函数
 * @module utils
- * @version 0.4.0
+ * @version 0.5.0
 */
 /**
 * 生成唯一ID
@@ -38,7 +38,7 @@ const prefersDark = () => {
 /**
 * MetonaToast Icons — 图标SVG定义
 * @module icons
- * @version 0.4.0
+ * @version 0.5.0
 * @description 107 个内置 SVG 图标
 */
 const ICONS = {
@@ -535,7 +535,7 @@ const ICONS = {
 /**
 * MetonaToast Locales — 国际化翻译数据
 * @module locales
- * @version 0.4.0
+ * @version 0.5.0
 * @description 内置 zh-CN / en-US 完整翻译
 */
 const LOCALES = {
@@ -1022,12 +1022,12 @@ const LOCALES = {
 /**
 * MetonaToast Constants — 常量定义
 * @module constants
- * @version 0.4.0
+ * @version 0.5.0
 */
 /**
 * 版本号 — 唯一来源，发布时只需修改此处
 */
-const VERSION = '0.4.0';
+const VERSION = '0.5.0';
 /**
 * 默认配置
 */
@@ -1294,7 +1294,7 @@ const ANIMATION_TYPES = ['slide', 'fade', 'scale', 'bounce', 'flip', 'rotate', '
 /**
 * MetonaToast Styles — 样式管理
 * @module styles
- * @version 0.4.0
+ * @version 0.5.0
 */
 // 样式缓存
 let styleElement = null;
@@ -1783,7 +1783,7 @@ const injectStyles = () => {
 /**
 * MetonaToast Themes — 主题管理
 * @module themes
- * @version 0.4.0
+ * @version 0.5.0
 */
 // 当前主题状态
 let currentTheme = 'auto';
@@ -2127,7 +2127,7 @@ const themeUtils = {
 /**
 * MetonaToast i18n — 国际化管理
 * @module i18n
- * @version 0.4.0
+ * @version 0.5.0
 */
 // 当前语言状态
 let currentLocale = 'zh-CN';
@@ -2495,7 +2495,7 @@ const formatNumber = (number, options = {}) => {
    try {
        return new Intl.NumberFormat(currentLocale, options).format(number);
    }
-    catch (e) {
+    catch {
        return number.toString();
    }
 };
@@ -2510,7 +2510,7 @@ const formatCurrency = (amount, currency = 'USD', options = {}) => {
            ...options,
        }).format(amount);
    }
-    catch (e) {
+    catch {
        return amount.toString();
    }
 };
@@ -2526,7 +2526,7 @@ const formatPercent = (value, options = {}) => {
            ...options,
        }).format(value / 100);
    }
-    catch (e) {
+    catch {
        return `${value}%`;
    }
 };
@@ -2538,7 +2538,7 @@ const formatDate = (date, options = {}) => {
        const dateObj = date instanceof Date ? date : new Date(date);
        return new Intl.DateTimeFormat(currentLocale, options).format(dateObj);
    }
-    catch (e) {
+    catch {
        return String(date);
    }
 };
@@ -2582,7 +2582,7 @@ const formatRelativeTime = (date, options = {}) => {
        }
        return String(date);
    }
-    catch (e) {
+    catch {
        return String(date);
    }
 };
@@ -2609,7 +2609,7 @@ const formatPlural = (count, options = {}) => {
    try {
        return new Intl.PluralRules(currentLocale, options).select(count);
    }
-    catch (e) {
+    catch {
        return count === 1 ? 'one' : 'other';
    }
 };
@@ -2802,7 +2802,7 @@ const animationUtils = {
 /**
 * MetonaToast Toast — Toast 类
 * @module toast
- * @version 0.4.0
+ * @version 0.5.0
 */
 /**
 * Toast 类 — 核心通知组件
@@ -2821,12 +2821,19 @@ class Toast {
        if (!this._hooks.has(name))
            this._hooks.set(name, []);
        this._hooks.get(name).push(fn);
-        return () => this.off(name, fn);
+        // 用类名引用而非 this，保证返回的取消函数在任意调用上下文可用
+        return () => Toast.off(name, fn);
    }
    static off(name, fn) {
        const list = this._hooks.get(name);
-        if (list)
-            this._hooks.set(name, list.filter(f => f !== fn));
+        if (list) {
+            const next = list.filter(f => f !== fn);
+            // 空数组直接删除 key，避免残留
+            if (next.length === 0)
+                this._hooks.delete(name);
+            else
+                this._hooks.set(name, next);
+        }
    }
    /**
     * 触发钩子 — 如果任意钩子返回 false 则整体返回 false
@@ -3434,7 +3441,7 @@ const _containerCache = new Map();
 /**
 * MetonaToast Templates — HTML 模板辅助函数
 * @module templates
- * @version 0.4.0
+ * @version 0.5.0
 * @description confirm / prompt / progress / action 的 DOM 模板
 */
 /**
@@ -3506,7 +3513,7 @@ const actionHTML = (actions) => {
 /**
 * MetonaToast Plugins — 插件系统
 * @module plugins
- * @version 0.4.0
+ * @version 0.5.0
 */
 /**
 * 插件管理器
@@ -3661,6 +3668,12 @@ const presetPlugins = {
                }
                catch (_e) { /* noop */ }
            }
+            // 卸载 use() 注册的配置保存钩子
+            const meta = this;
+            if (typeof meta._saveOff === 'function') {
+                meta._saveOff();
+                meta._saveOff = null;
+            }
        },
    },
    /**
@@ -3683,6 +3696,14 @@ const presetPlugins = {
            setTimeout(() => { if (el.parentNode)
                el.parentNode.removeChild(el); }, 3000);
        },
+        uninstall() {
+            // 卸载 use() 注册的朗读钩子
+            const meta = this;
+            if (typeof meta._off === 'function') {
+                meta._off();
+                meta._off = null;
+            }
+        },
    },
    /**
     * 去重插件 — 相同 type + message 的 toast 自动合并（更新已有的一条）
@@ -3752,7 +3773,7 @@ const defaultPluginManager = new PluginManager();
 /**
 * MetonaToast API — meToast 核心 API 对象
 * @module api
- * @version 0.4.0
+ * @version 0.5.0
 */
 /**
 * 参数标准化工具
@@ -4088,12 +4109,14 @@ const meToast = {
                actions.forEach((a, i) => {
                    const btn = toast.el?.querySelector(`.met-action-btn-${i}`);
                    if (btn && typeof a.onClick === 'function') {
-                        btn.addEventListener('click', () => {
+                        btn.addEventListener('click', (e) => {
+                            // 阻止冒泡到 toast 的 closeOnClick 处理器，由 close 选项控制是否关闭
+                            e.stopPropagation();
                            try {
                                a.onClick(toast);
                            }
-                            catch (e) {
-                                console.error('Action onClick error:', e);
+                            catch (err) {
+                                console.error('Action onClick error:', err);
                            }
                            if (a.close !== false)
                                toast.close();
@@ -4330,25 +4353,37 @@ const meToast = {
                return this;
            }
            this.plugins.register(plugin, { ...preset, ...options });
-            // 连接插件钩子
+            // 连接插件钩子（重复 use 前先卸载旧钩子，防止重复注册）
+            // 注意：off 引用存在已注册的插件对象上（stored），uninstall 时 this 即该对象
+            const stored = this.plugins.get(plugin);
            if (plugin === 'accessibility') {
-                Toast.on('afterShow', (toast) => {
-                    const acc = preset;
-                    if (typeof acc.announce === 'function')
-                        acc.announce(toast);
-                });
+                if (stored && typeof stored._off === 'function') {
+                    stored._off();
+                }
+                const acc = preset;
+                if (stored) {
+                    stored._off = Toast.on('afterShow', (toast) => {
+                        if (typeof acc.announce === 'function')
+                            acc.announce(toast);
+                    });
+                }
            }
            if (plugin === 'persistence') {
+                if (stored && typeof stored._saveOff === 'function') {
+                    stored._saveOff();
+                }
                const saved = typeof preset.install === 'function'
                    ? preset.install(this.plugins)
                    : null;
                if (saved)
                    this.configure(saved);
-                Toast.on('afterClose', () => {
-                    const p = preset;
-                    if (typeof p.save === 'function')
-                        p.save(this.getConfig());
-                });
+                const p = preset;
+                if (stored) {
+                    stored._saveOff = Toast.on('afterClose', () => {
+                        if (typeof p.save === 'function')
+                            p.save(this.getConfig());
+                    });
+                }
            }
        }
        else if (plugin && typeof plugin === 'object') {
@@ -4424,7 +4459,7 @@ Toast.setCallbacks({
 /**
 * MetonaToast — 轻量级Toast通知库
 * @module metona-toast
- * @version 0.4.0
+ * @version 0.5.0
 * @author thzxx
 * @license MIT
 */
@@ -7,7 +7,7 @@
    /**
     * MetonaToast Utils — 工具函数
     * @module utils
-     * @version 0.4.0
+     * @version 0.5.0
     */
    /**
     * 生成唯一ID
@@ -44,7 +44,7 @@
    /**
     * MetonaToast Icons — 图标SVG定义
     * @module icons
-     * @version 0.4.0
+     * @version 0.5.0
     * @description 107 个内置 SVG 图标
     */
    const ICONS = {
@@ -541,7 +541,7 @@
    /**
     * MetonaToast Locales — 国际化翻译数据
     * @module locales
-     * @version 0.4.0
+     * @version 0.5.0
     * @description 内置 zh-CN / en-US 完整翻译
     */
    const LOCALES = {
@@ -1028,12 +1028,12 @@
    /**
     * MetonaToast Constants — 常量定义
     * @module constants
-     * @version 0.4.0
+     * @version 0.5.0
     */
    /**
     * 版本号 — 唯一来源，发布时只需修改此处
     */
-    const VERSION = '0.4.0';
+    const VERSION = '0.5.0';
    /**
     * 默认配置
     */
@@ -1300,7 +1300,7 @@
    /**
     * MetonaToast Styles — 样式管理
     * @module styles
-     * @version 0.4.0
+     * @version 0.5.0
     */
    // 样式缓存
    let styleElement = null;
@@ -1789,7 +1789,7 @@
    /**
     * MetonaToast Themes — 主题管理
     * @module themes
-     * @version 0.4.0
+     * @version 0.5.0
     */
    // 当前主题状态
    let currentTheme = 'auto';
@@ -2133,7 +2133,7 @@
    /**
     * MetonaToast i18n — 国际化管理
     * @module i18n
-     * @version 0.4.0
+     * @version 0.5.0
     */
    // 当前语言状态
    let currentLocale = 'zh-CN';
@@ -2501,7 +2501,7 @@
        try {
            return new Intl.NumberFormat(currentLocale, options).format(number);
        }
-        catch (e) {
+        catch {
            return number.toString();
        }
    };
@@ -2516,7 +2516,7 @@
                ...options,
            }).format(amount);
        }
-        catch (e) {
+        catch {
            return amount.toString();
        }
    };
@@ -2532,7 +2532,7 @@
                ...options,
            }).format(value / 100);
        }
-        catch (e) {
+        catch {
            return `${value}%`;
        }
    };
@@ -2544,7 +2544,7 @@
            const dateObj = date instanceof Date ? date : new Date(date);
            return new Intl.DateTimeFormat(currentLocale, options).format(dateObj);
        }
-        catch (e) {
+        catch {
            return String(date);
        }
    };
@@ -2588,7 +2588,7 @@
            }
            return String(date);
        }
-        catch (e) {
+        catch {
            return String(date);
        }
    };
@@ -2615,7 +2615,7 @@
        try {
            return new Intl.PluralRules(currentLocale, options).select(count);
        }
-        catch (e) {
+        catch {
            return count === 1 ? 'one' : 'other';
        }
    };
@@ -2808,7 +2808,7 @@
    /**
     * MetonaToast Toast — Toast 类
     * @module toast
-     * @version 0.4.0
+     * @version 0.5.0
     */
    /**
     * Toast 类 — 核心通知组件
@@ -2827,12 +2827,19 @@
            if (!this._hooks.has(name))
                this._hooks.set(name, []);
            this._hooks.get(name).push(fn);
-            return () => this.off(name, fn);
+            // 用类名引用而非 this，保证返回的取消函数在任意调用上下文可用
+            return () => Toast.off(name, fn);
        }
        static off(name, fn) {
            const list = this._hooks.get(name);
-            if (list)
-                this._hooks.set(name, list.filter(f => f !== fn));
+            if (list) {
+                const next = list.filter(f => f !== fn);
+                // 空数组直接删除 key，避免残留
+                if (next.length === 0)
+                    this._hooks.delete(name);
+                else
+                    this._hooks.set(name, next);
+            }
        }
        /**
         * 触发钩子 — 如果任意钩子返回 false 则整体返回 false
@@ -3440,7 +3447,7 @@
    /**
     * MetonaToast Templates — HTML 模板辅助函数
     * @module templates
-     * @version 0.4.0
+     * @version 0.5.0
     * @description confirm / prompt / progress / action 的 DOM 模板
     */
    /**
@@ -3512,7 +3519,7 @@
    /**
     * MetonaToast Plugins — 插件系统
     * @module plugins
-     * @version 0.4.0
+     * @version 0.5.0
     */
    /**
     * 插件管理器
@@ -3667,6 +3674,12 @@
                    }
                    catch (_e) { /* noop */ }
                }
+                // 卸载 use() 注册的配置保存钩子
+                const meta = this;
+                if (typeof meta._saveOff === 'function') {
+                    meta._saveOff();
+                    meta._saveOff = null;
+                }
            },
        },
        /**
@@ -3689,6 +3702,14 @@
                setTimeout(() => { if (el.parentNode)
                    el.parentNode.removeChild(el); }, 3000);
            },
+            uninstall() {
+                // 卸载 use() 注册的朗读钩子
+                const meta = this;
+                if (typeof meta._off === 'function') {
+                    meta._off();
+                    meta._off = null;
+                }
+            },
        },
        /**
         * 去重插件 — 相同 type + message 的 toast 自动合并（更新已有的一条）
@@ -3758,7 +3779,7 @@
    /**
     * MetonaToast API — meToast 核心 API 对象
     * @module api
-     * @version 0.4.0
+     * @version 0.5.0
     */
    /**
     * 参数标准化工具
@@ -4094,12 +4115,14 @@
                    actions.forEach((a, i) => {
                        const btn = toast.el?.querySelector(`.met-action-btn-${i}`);
                        if (btn && typeof a.onClick === 'function') {
-                            btn.addEventListener('click', () => {
+                            btn.addEventListener('click', (e) => {
+                                // 阻止冒泡到 toast 的 closeOnClick 处理器，由 close 选项控制是否关闭
+                                e.stopPropagation();
                                try {
                                    a.onClick(toast);
                                }
-                                catch (e) {
-                                    console.error('Action onClick error:', e);
+                                catch (err) {
+                                    console.error('Action onClick error:', err);
                                }
                                if (a.close !== false)
                                    toast.close();
@@ -4336,25 +4359,37 @@
                    return this;
                }
                this.plugins.register(plugin, { ...preset, ...options });
-                // 连接插件钩子
+                // 连接插件钩子（重复 use 前先卸载旧钩子，防止重复注册）
+                // 注意：off 引用存在已注册的插件对象上（stored），uninstall 时 this 即该对象
+                const stored = this.plugins.get(plugin);
                if (plugin === 'accessibility') {
-                    Toast.on('afterShow', (toast) => {
-                        const acc = preset;
-                        if (typeof acc.announce === 'function')
-                            acc.announce(toast);
-                    });
+                    if (stored && typeof stored._off === 'function') {
+                        stored._off();
+                    }
+                    const acc = preset;
+                    if (stored) {
+                        stored._off = Toast.on('afterShow', (toast) => {
+                            if (typeof acc.announce === 'function')
+                                acc.announce(toast);
+                        });
+                    }
                }
                if (plugin === 'persistence') {
+                    if (stored && typeof stored._saveOff === 'function') {
+                        stored._saveOff();
+                    }
                    const saved = typeof preset.install === 'function'
                        ? preset.install(this.plugins)
                        : null;
                    if (saved)
                        this.configure(saved);
-                    Toast.on('afterClose', () => {
-                        const p = preset;
-                        if (typeof p.save === 'function')
-                            p.save(this.getConfig());
-                    });
+                    const p = preset;
+                    if (stored) {
+                        stored._saveOff = Toast.on('afterClose', () => {
+                            if (typeof p.save === 'function')
+                                p.save(this.getConfig());
+                        });
+                    }
                }
            }
            else if (plugin && typeof plugin === 'object') {
@@ -4430,7 +4465,7 @@
    /**
     * MetonaToast — 轻量级Toast通知库
     * @module metona-toast
-     * @version 0.4.0
+     * @version 0.5.0
     * @author thzxx
     * @license MIT
     */
@@ -5,7 +5,7 @@ var react = require('react');
 /**
 * MetonaToast Utils — 工具函数
 * @module utils
- * @version 0.4.0
+ * @version 0.5.0
 */
 /**
 * 生成唯一ID
@@ -42,7 +42,7 @@ const prefersDark = () => {
 /**
 * MetonaToast Icons — 图标SVG定义
 * @module icons
- * @version 0.4.0
+ * @version 0.5.0
 * @description 107 个内置 SVG 图标
 */
 const ICONS = {
@@ -539,7 +539,7 @@ const ICONS = {
 /**
 * MetonaToast Locales — 国际化翻译数据
 * @module locales
- * @version 0.4.0
+ * @version 0.5.0
 * @description 内置 zh-CN / en-US 完整翻译
 */
 const LOCALES = {
@@ -1026,12 +1026,12 @@ const LOCALES = {
 /**
 * MetonaToast Constants — 常量定义
 * @module constants
- * @version 0.4.0
+ * @version 0.5.0
 */
 /**
 * 版本号 — 唯一来源，发布时只需修改此处
 */
-const VERSION = '0.4.0';
+const VERSION = '0.5.0';
 /**
 * 默认配置
 */
@@ -1298,7 +1298,7 @@ const ANIMATION_TYPES = ['slide', 'fade', 'scale', 'bounce', 'flip', 'rotate', '
 /**
 * MetonaToast Styles — 样式管理
 * @module styles
- * @version 0.4.0
+ * @version 0.5.0
 */
 // 样式缓存
 let styleElement = null;
@@ -1787,7 +1787,7 @@ const injectStyles = () => {
 /**
 * MetonaToast Themes — 主题管理
 * @module themes
- * @version 0.4.0
+ * @version 0.5.0
 */
 // 当前主题状态
 let currentTheme = 'auto';
@@ -2131,7 +2131,7 @@ const themeUtils = {
 /**
 * MetonaToast i18n — 国际化管理
 * @module i18n
- * @version 0.4.0
+ * @version 0.5.0
 */
 // 当前语言状态
 let currentLocale = 'zh-CN';
@@ -2499,7 +2499,7 @@ const formatNumber = (number, options = {}) => {
    try {
        return new Intl.NumberFormat(currentLocale, options).format(number);
    }
-    catch (e) {
+    catch {
        return number.toString();
    }
 };
@@ -2514,7 +2514,7 @@ const formatCurrency = (amount, currency = 'USD', options = {}) => {
            ...options,
        }).format(amount);
    }
-    catch (e) {
+    catch {
        return amount.toString();
    }
 };
@@ -2530,7 +2530,7 @@ const formatPercent = (value, options = {}) => {
            ...options,
        }).format(value / 100);
    }
-    catch (e) {
+    catch {
        return `${value}%`;
    }
 };
@@ -2542,7 +2542,7 @@ const formatDate = (date, options = {}) => {
        const dateObj = date instanceof Date ? date : new Date(date);
        return new Intl.DateTimeFormat(currentLocale, options).format(dateObj);
    }
-    catch (e) {
+    catch {
        return String(date);
    }
 };
@@ -2586,7 +2586,7 @@ const formatRelativeTime = (date, options = {}) => {
        }
        return String(date);
    }
-    catch (e) {
+    catch {
        return String(date);
    }
 };
@@ -2613,7 +2613,7 @@ const formatPlural = (count, options = {}) => {
    try {
        return new Intl.PluralRules(currentLocale, options).select(count);
    }
-    catch (e) {
+    catch {
        return count === 1 ? 'one' : 'other';
    }
 };
@@ -2806,7 +2806,7 @@ const animationUtils = {
 /**
 * MetonaToast Toast — Toast 类
 * @module toast
- * @version 0.4.0
+ * @version 0.5.0
 */
 /**
 * Toast 类 — 核心通知组件
@@ -2825,12 +2825,19 @@ let Toast$1 = class Toast {
        if (!this._hooks.has(name))
            this._hooks.set(name, []);
        this._hooks.get(name).push(fn);
-        return () => this.off(name, fn);
+        // 用类名引用而非 this，保证返回的取消函数在任意调用上下文可用
+        return () => Toast.off(name, fn);
    }
    static off(name, fn) {
        const list = this._hooks.get(name);
-        if (list)
-            this._hooks.set(name, list.filter(f => f !== fn));
+        if (list) {
+            const next = list.filter(f => f !== fn);
+            // 空数组直接删除 key，避免残留
+            if (next.length === 0)
+                this._hooks.delete(name);
+            else
+                this._hooks.set(name, next);
+        }
    }
    /**
     * 触发钩子 — 如果任意钩子返回 false 则整体返回 false
@@ -3438,7 +3445,7 @@ const _containerCache = new Map();
 /**
 * MetonaToast Templates — HTML 模板辅助函数
 * @module templates
- * @version 0.4.0
+ * @version 0.5.0
 * @description confirm / prompt / progress / action 的 DOM 模板
 */
 /**
@@ -3510,7 +3517,7 @@ const actionHTML = (actions) => {
 /**
 * MetonaToast Plugins — 插件系统
 * @module plugins
- * @version 0.4.0
+ * @version 0.5.0
 */
 /**
 * 插件管理器
@@ -3665,6 +3672,12 @@ const presetPlugins = {
                }
                catch (_e) { /* noop */ }
            }
+            // 卸载 use() 注册的配置保存钩子
+            const meta = this;
+            if (typeof meta._saveOff === 'function') {
+                meta._saveOff();
+                meta._saveOff = null;
+            }
        },
    },
    /**
@@ -3687,6 +3700,14 @@ const presetPlugins = {
            setTimeout(() => { if (el.parentNode)
                el.parentNode.removeChild(el); }, 3000);
        },
+        uninstall() {
+            // 卸载 use() 注册的朗读钩子
+            const meta = this;
+            if (typeof meta._off === 'function') {
+                meta._off();
+                meta._off = null;
+            }
+        },
    },
    /**
     * 去重插件 — 相同 type + message 的 toast 自动合并（更新已有的一条）
@@ -3756,7 +3777,7 @@ const defaultPluginManager = new PluginManager();
 /**
 * MetonaToast API — meToast 核心 API 对象
 * @module api
- * @version 0.4.0
+ * @version 0.5.0
 */
 /**
 * 参数标准化工具
@@ -4092,12 +4113,14 @@ const meToast = {
                actions.forEach((a, i) => {
                    const btn = toast.el?.querySelector(`.met-action-btn-${i}`);
                    if (btn && typeof a.onClick === 'function') {
-                        btn.addEventListener('click', () => {
+                        btn.addEventListener('click', (e) => {
+                            // 阻止冒泡到 toast 的 closeOnClick 处理器，由 close 选项控制是否关闭
+                            e.stopPropagation();
                            try {
                                a.onClick(toast);
                            }
-                            catch (e) {
-                                console.error('Action onClick error:', e);
+                            catch (err) {
+                                console.error('Action onClick error:', err);
                            }
                            if (a.close !== false)
                                toast.close();
@@ -4334,25 +4357,37 @@ const meToast = {
                return this;
            }
            this.plugins.register(plugin, { ...preset, ...options });
-            // 连接插件钩子
+            // 连接插件钩子（重复 use 前先卸载旧钩子，防止重复注册）
+            // 注意：off 引用存在已注册的插件对象上（stored），uninstall 时 this 即该对象
+            const stored = this.plugins.get(plugin);
            if (plugin === 'accessibility') {
-                Toast$1.on('afterShow', (toast) => {
-                    const acc = preset;
-                    if (typeof acc.announce === 'function')
-                        acc.announce(toast);
-                });
+                if (stored && typeof stored._off === 'function') {
+                    stored._off();
+                }
+                const acc = preset;
+                if (stored) {
+                    stored._off = Toast$1.on('afterShow', (toast) => {
+                        if (typeof acc.announce === 'function')
+                            acc.announce(toast);
+                    });
+                }
            }
            if (plugin === 'persistence') {
+                if (stored && typeof stored._saveOff === 'function') {
+                    stored._saveOff();
+                }
                const saved = typeof preset.install === 'function'
                    ? preset.install(this.plugins)
                    : null;
                if (saved)
                    this.configure(saved);
-                Toast$1.on('afterClose', () => {
-                    const p = preset;
-                    if (typeof p.save === 'function')
-                        p.save(this.getConfig());
-                });
+                const p = preset;
+                if (stored) {
+                    stored._saveOff = Toast$1.on('afterClose', () => {
+                        if (typeof p.save === 'function')
+                            p.save(this.getConfig());
+                    });
+                }
            }
        }
        else if (plugin && typeof plugin === 'object') {
@@ -4428,7 +4463,7 @@ Toast$1.setCallbacks({
 /**
 * MetonaToast — 轻量级Toast通知库
 * @module metona-toast
- * @version 0.4.0
+ * @version 0.5.0
 * @author thzxx
 * @license MIT
 */
@@ -4494,7 +4529,7 @@ if (typeof window !== 'undefined') {
 /**
 * MetonaToast React — React 适配器
 * @module react
- * @version 0.4.0
+ * @version 0.5.0
 * @description useToast hook + 声明式 <Toast /> 组件。主包保持零依赖，React 为 optional peerDependency
 */
 const SHOW_METHODS = ['success', 'error', 'warning', 'info', 'show'];
@@ -1,7 +1,7 @@
 /**
 * MetonaToast — 核心类型定义
 * @module types
- * @version 0.4.0
+ * @version 0.5.0
 */
 /** Toast 通知类型（107种内置图标类型） */
 type ToastType = 'default' | 'success' | 'error' | 'warning' | 'info' | 'loading' | 'check' | 'x' | 'alert' | 'question' | 'star' | 'heart' | 'bell' | 'mail' | 'settings' | 'user' | 'home' | 'search' | 'plus' | 'minus' | 'edit' | 'trash' | 'download' | 'upload' | 'share' | 'link' | 'external' | 'clock' | 'calendar' | 'map' | 'compass' | 'globe' | 'wifi' | 'cloud' | 'sun' | 'moon' | 'zap' | 'activity' | 'cpu' | 'database' | 'server' | 'terminal' | 'code' | 'git' | 'package' | 'layers' | 'grid' | 'list' | 'filter' | 'sort' | 'refresh' | 'sync' | 'power' | 'battery' | 'bluetooth' | 'volume' | 'mic' | 'camera' | 'image' | 'video' | 'music' | 'file' | 'folder' | 'clipboard' | 'save' | 'print' | 'eye' | 'eyeOff' | 'lock' | 'unlock' | 'shield' | 'key' | 'flag' | 'bookmark' | 'tag' | 'gift' | 'award' | 'target' | 'crosshair' | 'move' | 'maximize' | 'minimize' | 'copy' | 'cut' | 'paste' | 'rotateCw' | 'rotateCcw' | 'zoomIn' | 'zoomOut' | 'crop' | 'sliders' | 'toggleLeft' | 'toggleRight' | 'checkCircle' | 'xCircle' | 'alertCircle' | 'infoCircle' | 'helpCircle' | 'alertTriangle' | 'checkSquare' | 'square' | 'circle' | 'triangle' | 'hexagon' | 'octagon' | 'pentagon' | 'diamond';
@@ -478,7 +478,7 @@ declare const enhancedMeToast: {
 /**
 * MetonaToast React — React 适配器
 * @module react
- * @version 0.4.0
+ * @version 0.5.0
 * @description useToast hook + 声明式 <Toast /> 组件。主包保持零依赖，React 为 optional peerDependency
 */

@@ -3,7 +3,7 @@ import { useRef, useEffect, useMemo } from 'react';
 /**
 * MetonaToast Utils — 工具函数
 * @module utils
- * @version 0.4.0
+ * @version 0.5.0
 */
 /**
 * 生成唯一ID
@@ -40,7 +40,7 @@ const prefersDark = () => {
 /**
 * MetonaToast Icons — 图标SVG定义
 * @module icons
- * @version 0.4.0
+ * @version 0.5.0
 * @description 107 个内置 SVG 图标
 */
 const ICONS = {
@@ -537,7 +537,7 @@ const ICONS = {
 /**
 * MetonaToast Locales — 国际化翻译数据
 * @module locales
- * @version 0.4.0
+ * @version 0.5.0
 * @description 内置 zh-CN / en-US 完整翻译
 */
 const LOCALES = {
@@ -1024,12 +1024,12 @@ const LOCALES = {
 /**
 * MetonaToast Constants — 常量定义
 * @module constants
- * @version 0.4.0
+ * @version 0.5.0
 */
 /**
 * 版本号 — 唯一来源，发布时只需修改此处
 */
-const VERSION = '0.4.0';
+const VERSION = '0.5.0';
 /**
 * 默认配置
 */
@@ -1296,7 +1296,7 @@ const ANIMATION_TYPES = ['slide', 'fade', 'scale', 'bounce', 'flip', 'rotate', '
 /**
 * MetonaToast Styles — 样式管理
 * @module styles
- * @version 0.4.0
+ * @version 0.5.0
 */
 // 样式缓存
 let styleElement = null;
@@ -1785,7 +1785,7 @@ const injectStyles = () => {
 /**
 * MetonaToast Themes — 主题管理
 * @module themes
- * @version 0.4.0
+ * @version 0.5.0
 */
 // 当前主题状态
 let currentTheme = 'auto';
@@ -2129,7 +2129,7 @@ const themeUtils = {
 /**
 * MetonaToast i18n — 国际化管理
 * @module i18n
- * @version 0.4.0
+ * @version 0.5.0
 */
 // 当前语言状态
 let currentLocale = 'zh-CN';
@@ -2497,7 +2497,7 @@ const formatNumber = (number, options = {}) => {
    try {
        return new Intl.NumberFormat(currentLocale, options).format(number);
    }
-    catch (e) {
+    catch {
        return number.toString();
    }
 };
@@ -2512,7 +2512,7 @@ const formatCurrency = (amount, currency = 'USD', options = {}) => {
            ...options,
        }).format(amount);
    }
-    catch (e) {
+    catch {
        return amount.toString();
    }
 };
@@ -2528,7 +2528,7 @@ const formatPercent = (value, options = {}) => {
            ...options,
        }).format(value / 100);
    }
-    catch (e) {
+    catch {
        return `${value}%`;
    }
 };
@@ -2540,7 +2540,7 @@ const formatDate = (date, options = {}) => {
        const dateObj = date instanceof Date ? date : new Date(date);
        return new Intl.DateTimeFormat(currentLocale, options).format(dateObj);
    }
-    catch (e) {
+    catch {
        return String(date);
    }
 };
@@ -2584,7 +2584,7 @@ const formatRelativeTime = (date, options = {}) => {
        }
        return String(date);
    }
-    catch (e) {
+    catch {
        return String(date);
    }
 };
@@ -2611,7 +2611,7 @@ const formatPlural = (count, options = {}) => {
    try {
        return new Intl.PluralRules(currentLocale, options).select(count);
    }
-    catch (e) {
+    catch {
        return count === 1 ? 'one' : 'other';
    }
 };
@@ -2804,7 +2804,7 @@ const animationUtils = {
 /**
 * MetonaToast Toast — Toast 类
 * @module toast
- * @version 0.4.0
+ * @version 0.5.0
 */
 /**
 * Toast 类 — 核心通知组件
@@ -2823,12 +2823,19 @@ let Toast$1 = class Toast {
        if (!this._hooks.has(name))
            this._hooks.set(name, []);
        this._hooks.get(name).push(fn);
-        return () => this.off(name, fn);
+        // 用类名引用而非 this，保证返回的取消函数在任意调用上下文可用
+        return () => Toast.off(name, fn);
    }
    static off(name, fn) {
        const list = this._hooks.get(name);
-        if (list)
-            this._hooks.set(name, list.filter(f => f !== fn));
+        if (list) {
+            const next = list.filter(f => f !== fn);
+            // 空数组直接删除 key，避免残留
+            if (next.length === 0)
+                this._hooks.delete(name);
+            else
+                this._hooks.set(name, next);
+        }
    }
    /**
     * 触发钩子 — 如果任意钩子返回 false 则整体返回 false
@@ -3436,7 +3443,7 @@ const _containerCache = new Map();
 /**
 * MetonaToast Templates — HTML 模板辅助函数
 * @module templates
- * @version 0.4.0
+ * @version 0.5.0
 * @description confirm / prompt / progress / action 的 DOM 模板
 */
 /**
@@ -3508,7 +3515,7 @@ const actionHTML = (actions) => {
 /**
 * MetonaToast Plugins — 插件系统
 * @module plugins
- * @version 0.4.0
+ * @version 0.5.0
 */
 /**
 * 插件管理器
@@ -3663,6 +3670,12 @@ const presetPlugins = {
                }
                catch (_e) { /* noop */ }
            }
+            // 卸载 use() 注册的配置保存钩子
+            const meta = this;
+            if (typeof meta._saveOff === 'function') {
+                meta._saveOff();
+                meta._saveOff = null;
+            }
        },
    },
    /**
@@ -3685,6 +3698,14 @@ const presetPlugins = {
            setTimeout(() => { if (el.parentNode)
                el.parentNode.removeChild(el); }, 3000);
        },
+        uninstall() {
+            // 卸载 use() 注册的朗读钩子
+            const meta = this;
+            if (typeof meta._off === 'function') {
+                meta._off();
+                meta._off = null;
+            }
+        },
    },
    /**
     * 去重插件 — 相同 type + message 的 toast 自动合并（更新已有的一条）
@@ -3754,7 +3775,7 @@ const defaultPluginManager = new PluginManager();
 /**
 * MetonaToast API — meToast 核心 API 对象
 * @module api
- * @version 0.4.0
+ * @version 0.5.0
 */
 /**
 * 参数标准化工具
@@ -4090,12 +4111,14 @@ const meToast = {
                actions.forEach((a, i) => {
                    const btn = toast.el?.querySelector(`.met-action-btn-${i}`);
                    if (btn && typeof a.onClick === 'function') {
-                        btn.addEventListener('click', () => {
+                        btn.addEventListener('click', (e) => {
+                            // 阻止冒泡到 toast 的 closeOnClick 处理器，由 close 选项控制是否关闭
+                            e.stopPropagation();
                            try {
                                a.onClick(toast);
                            }
-                            catch (e) {
-                                console.error('Action onClick error:', e);
+                            catch (err) {
+                                console.error('Action onClick error:', err);
                            }
                            if (a.close !== false)
                                toast.close();
@@ -4332,25 +4355,37 @@ const meToast = {
                return this;
            }
            this.plugins.register(plugin, { ...preset, ...options });
-            // 连接插件钩子
+            // 连接插件钩子（重复 use 前先卸载旧钩子，防止重复注册）
+            // 注意：off 引用存在已注册的插件对象上（stored），uninstall 时 this 即该对象
+            const stored = this.plugins.get(plugin);
            if (plugin === 'accessibility') {
-                Toast$1.on('afterShow', (toast) => {
-                    const acc = preset;
-                    if (typeof acc.announce === 'function')
-                        acc.announce(toast);
-                });
+                if (stored && typeof stored._off === 'function') {
+                    stored._off();
+                }
+                const acc = preset;
+                if (stored) {
+                    stored._off = Toast$1.on('afterShow', (toast) => {
+                        if (typeof acc.announce === 'function')
+                            acc.announce(toast);
+                    });
+                }
            }
            if (plugin === 'persistence') {
+                if (stored && typeof stored._saveOff === 'function') {
+                    stored._saveOff();
+                }
                const saved = typeof preset.install === 'function'
                    ? preset.install(this.plugins)
                    : null;
                if (saved)
                    this.configure(saved);
-                Toast$1.on('afterClose', () => {
-                    const p = preset;
-                    if (typeof p.save === 'function')
-                        p.save(this.getConfig());
-                });
+                const p = preset;
+                if (stored) {
+                    stored._saveOff = Toast$1.on('afterClose', () => {
+                        if (typeof p.save === 'function')
+                            p.save(this.getConfig());
+                    });
+                }
            }
        }
        else if (plugin && typeof plugin === 'object') {
@@ -4426,7 +4461,7 @@ Toast$1.setCallbacks({
 /**
 * MetonaToast — 轻量级Toast通知库
 * @module metona-toast
- * @version 0.4.0
+ * @version 0.5.0
 * @author thzxx
 * @license MIT
 */
@@ -4492,7 +4527,7 @@ if (typeof window !== 'undefined') {
 /**
 * MetonaToast React — React 适配器
 * @module react
- * @version 0.4.0
+ * @version 0.5.0
 * @description useToast hook + 声明式 <Toast /> 组件。主包保持零依赖，React 为 optional peerDependency
 */
 const SHOW_METHODS = ['success', 'error', 'warning', 'info', 'show'];
@@ -18,5 +18,13 @@ module.exports = {
  ],
  coverageDirectory: 'coverage',
  coverageReporters: ['text', 'lcov'],
+  coverageThreshold: {
+    global: {
+      statements: 85,
+      branches: 65,
+      functions: 85,
+      lines: 95,
+    },
+  },
  verbose: true,
 };
@@ -1,6 +1,6 @@
 {
  "name": "@metona-team/metona-toast",
-  "version": "0.4.0",
+  "version": "0.5.0",
  "description": "轻量、零依赖、精致美观的Toast通知库。TypeScript源码，开箱即用。",
  "type": "module",
  "main": "dist/metona-toast.cjs.js",
@@ -244,7 +244,7 @@

  <!-- 14. 错误回调 -->
  <div class="card">
-	    <div class="label">🛡️ onError 错误捕获 <span style="color:#34d399;font-size:10px;">v0.4.0</span></div>
+	    <div class="label">🛡️ onError 错误捕获 <span style="color:#34d399;font-size:10px;">v0.5.0</span></div>
    <div class="btn-row">
      <button class="btn c-e" onclick="demoOnError()">演示 onError</button>
      <button class="btn c-w" onclick="demoOnErrorReset()">重置回调</button>
@@ -282,7 +282,7 @@
 </main>

 <footer>
-		  MetonaToast v0.4.0 · MIT · <a href="index.html">首页</a> · <a href="docs.html">文档</a> · <a href="https://git.metona.cn/MetonaTeam/MetonaToast">Gitea</a>
+		  MetonaToast v0.5.0 · MIT · <a href="index.html">首页</a> · <a href="docs.html">文档</a> · <a href="https://git.metona.cn/MetonaTeam/MetonaToast">Gitea</a>
 </footer>

 <script src="../dist/metona-toast.js"></script>
@@ -90,7 +90,7 @@
 <main class="main">

 <h1>API 文档</h1>
-<p>MetonaToast v0.4.0 完整 API 参考。所有基础通知方法（show/success/error/warning/info/loading）支持两种调用形式，均可传入任何 <a href="#config">配置项</a> 作为可选第二参数。</p>
+<p>MetonaToast v0.5.0 完整 API 参考。所有基础通知方法（show/success/error/warning/info/loading）支持两种调用形式，均可传入任何 <a href="#config">配置项</a> 作为可选第二参数。</p>

 <!-- ===== 基础通知 ===== -->
 <h2 id="show">show(message, opts?)</h2>
@@ -247,7 +247,7 @@ orderGroup.<span class="fn">dismiss</span>(); <span class="cm">// 一键关闭
 </section>

 <footer>
-	    <p>MetonaToast v0.4.0 · MIT License · <a href="https://git.metona.cn/MetonaTeam/MetonaToast">Gitea</a></p>
+	    <p>MetonaToast v0.5.0 · MIT License · <a href="https://git.metona.cn/MetonaTeam/MetonaToast">Gitea</a></p>
 </footer>

 <script src="../dist/metona-toast.js"></script>
@@ -1,12 +1,11 @@
 /**
 * MetonaToast API — meToast 核心 API 对象
 * @module api
- * @version 0.4.0
+ * @version 0.5.0
 */

 import { Toast, _containerCache } from './toast.js';
 import { DEFAULTS, VERSION } from './constants.js';
-import { escapeHTML } from './utils.js';
 import { t, setCurrentLocale } from './i18n.js';
 import { applyTheme } from './themes.js';
 import { confirmHTML, promptHTML, progressHTML, actionHTML } from './templates.js';
@@ -395,8 +394,10 @@ const meToast: MeToast = {
        actions.forEach((a, i) => {
          const btn = toast.el?.querySelector(`.met-action-btn-${i}`) as HTMLElement | null;
          if (btn && typeof a.onClick === 'function') {
-            btn.addEventListener('click', () => {
-              try { a.onClick(toast); } catch (e) { console.error('Action onClick error:', e); }
+            btn.addEventListener('click', (e: Event) => {
+              // 阻止冒泡到 toast 的 closeOnClick 处理器，由 close 选项控制是否关闭
+              e.stopPropagation();
+              try { a.onClick(toast); } catch (err) { console.error('Action onClick error:', err); }
              if (a.close !== false) toast.close();
            });
          }
@@ -658,22 +659,30 @@ const meToast: MeToast = {
      }
      this.plugins.register(plugin, { ...preset, ...options });

-      // 连接插件钩子
+      // 连接插件钩子（重复 use 前先卸载旧钩子，防止重复注册）
+      // 注意：off 引用存在已注册的插件对象上（stored），uninstall 时 this 即该对象
+      const stored = this.plugins.get(plugin) as (Record<string, unknown> & Plugin) | null;
      if (plugin === 'accessibility') {
-        Toast.on('afterShow', (toast: ToastInstance) => {
-          const acc = preset as Record<string, (t: ToastInstance) => void>;
-          if (typeof acc.announce === 'function') acc.announce(toast);
-        });
+        if (stored && typeof stored._off === 'function') { (stored._off as () => void)(); }
+        const acc = preset as Record<string, (t: ToastInstance) => void>;
+        if (stored) {
+          stored._off = Toast.on('afterShow', (toast: ToastInstance) => {
+            if (typeof acc.announce === 'function') acc.announce(toast);
+          });
+        }
      }
      if (plugin === 'persistence') {
+        if (stored && typeof stored._saveOff === 'function') { (stored._saveOff as () => void)(); }
        const saved = typeof preset.install === 'function'
          ? preset.install(this.plugins as unknown as import('./types.js').PluginManager)
          : null;
        if (saved) this.configure(saved as Partial<ToastConfig>);
-        Toast.on('afterClose', () => {
-          const p = preset as Record<string, (c: unknown) => void>;
-          if (typeof p.save === 'function') p.save(this.getConfig());
-        });
+        const p = preset as Record<string, (c: unknown) => void>;
+        if (stored) {
+          stored._saveOff = Toast.on('afterClose', () => {
+            if (typeof p.save === 'function') p.save(this.getConfig());
+          });
+        }
      }
    } else if (plugin && typeof plugin === 'object') {
      this.plugins.register(plugin.name || 'custom', { ...plugin, ...options } as Plugin);
@@ -1,7 +1,7 @@
 /**
 * MetonaToast Constants — 常量定义
 * @module constants
- * @version 0.4.0
+ * @version 0.5.0
 */

 import { ICONS } from './icons.js';
@@ -12,7 +12,7 @@ export { ICONS, LOCALES };
 /**
 * 版本号 — 唯一来源，发布时只需修改此处
 */
-export const VERSION = '0.4.0';
+export const VERSION = '0.5.0';

 /**
 * 默认配置
@@ -1,7 +1,7 @@
 /**
 * MetonaToast i18n — 国际化管理
 * @module i18n
- * @version 0.4.0
+ * @version 0.5.0
 */

 import { LOCALES } from './constants.js';
@@ -405,7 +405,7 @@ export const clearLocaleListeners = (): void => {
 export const formatNumber = (number: number, options: Intl.NumberFormatOptions = {}): string => {
  try {
    return new Intl.NumberFormat(currentLocale, options).format(number);
-  } catch (e) {
+  } catch {
    return number.toString();
  }
 };
@@ -420,7 +420,7 @@ export const formatCurrency = (amount: number, currency = 'USD', options: Intl.N
      currency,
      ...options,
    }).format(amount);
-  } catch (e) {
+  } catch {
    return amount.toString();
  }
 };
@@ -436,7 +436,7 @@ export const formatPercent = (value: number, options: Intl.NumberFormatOptions =
      maximumFractionDigits: 2,
      ...options,
    }).format(value / 100);
-  } catch (e) {
+  } catch {
    return `${value}%`;
  }
 };
@@ -448,7 +448,7 @@ export const formatDate = (date: Date | number | string, options: Intl.DateTimeF
  try {
    const dateObj = date instanceof Date ? date : new Date(date);
    return new Intl.DateTimeFormat(currentLocale, options).format(dateObj);
-  } catch (e) {
+  } catch {
    return String(date);
  }
 };
@@ -497,7 +497,7 @@ export const formatRelativeTime = (date: Date | number | string, options: Intl.R
    }

    return String(date);
-  } catch (e) {
+  } catch {
    return String(date);
  }
 };
@@ -524,7 +524,7 @@ export const formatList = (list: string[], _options: Record<string, unknown> = {
 export const formatPlural = (count: number, options: Intl.PluralRulesOptions = {}): string => {
  try {
    return new Intl.PluralRules(currentLocale, options).select(count);
-  } catch (e) {
+  } catch {
    return count === 1 ? 'one' : 'other';
  }
 };
@@ -1,7 +1,7 @@
 /**
 * MetonaToast Icons — 图标SVG定义
 * @module icons
- * @version 0.4.0
+ * @version 0.5.0
 * @description 107 个内置 SVG 图标
 */

@@ -1,7 +1,7 @@
 /**
 * MetonaToast — 轻量级Toast通知库
 * @module metona-toast
- * @version 0.4.0
+ * @version 0.5.0
 * @author thzxx
 * @license MIT
 */
@@ -1,7 +1,7 @@
 /**
 * MetonaToast Locales — 国际化翻译数据
 * @module locales
- * @version 0.4.0
+ * @version 0.5.0
 * @description 内置 zh-CN / en-US 完整翻译
 */

@@ -1,7 +1,7 @@
 /**
 * MetonaToast Plugins — 插件系统
 * @module plugins
- * @version 0.4.0
+ * @version 0.5.0
 */

 import { t } from './i18n.js';
@@ -154,6 +154,12 @@ const presetPlugins: Record<string, Plugin> = {
          localStorage.removeItem(key);
        } catch (_e) { /* noop */ }
      }
+      // 卸载 use() 注册的配置保存钩子
+      const meta = this as Record<string, unknown>;
+      if (typeof meta._saveOff === 'function') {
+        (meta._saveOff as () => void)();
+        meta._saveOff = null;
+      }
    },
  },

@@ -176,6 +182,15 @@ const presetPlugins: Record<string, Plugin> = {
      document.body.appendChild(el);
      setTimeout(() => { if (el.parentNode) el.parentNode.removeChild(el); }, 3000);
    },
+
+    uninstall(this: Plugin) {
+      // 卸载 use() 注册的朗读钩子
+      const meta = this as Record<string, unknown>;
+      if (typeof meta._off === 'function') {
+        (meta._off as () => void)();
+        meta._off = null;
+      }
+    },
  },

  /**
@@ -1,7 +1,7 @@
 /**
 * MetonaToast React — React 适配器
 * @module react
- * @version 0.4.0
+ * @version 0.5.0
 * @description useToast hook + 声明式 <Toast /> 组件。主包保持零依赖，React 为 optional peerDependency
 */

@@ -1,7 +1,7 @@
 /**
 * MetonaToast Styles — 样式管理
 * @module styles
- * @version 0.4.0
+ * @version 0.5.0
 */

 import type { ThemeConfig } from './types.js';
@@ -595,18 +595,3 @@ export const watchSystemTheme = (callback: (theme: string) => void): (() => void
    mediaQuery.removeEventListener('change', handler);
  };
 };
-
-/**
- * 自动应用系统主题
- */
-export const autoApplySystemTheme = (): (() => void) => {
-  const applyTheme = (theme: string): void => {
-    updateStyles();
-    // _THEMES reference is from constants, but here we just need to use theme string
-    // applyThemeVariables is called externally
-  };
-
-  applyTheme(getSystemTheme());
-
-  return watchSystemTheme(applyTheme);
-};
@@ -1,7 +1,7 @@
 /**
 * MetonaToast Templates — HTML 模板辅助函数
 * @module templates
- * @version 0.4.0
+ * @version 0.5.0
 * @description confirm / prompt / progress / action 的 DOM 模板
 */

@@ -1,7 +1,7 @@
 /**
 * MetonaToast Themes — 主题管理
 * @module themes
- * @version 0.4.0
+ * @version 0.5.0
 */

 import { THEMES } from './constants.js';
@@ -1,7 +1,7 @@
 /**
 * MetonaToast Toast — Toast 类
 * @module toast
- * @version 0.4.0
+ * @version 0.5.0
 */

 import { generateId, escapeHTML } from './utils.js';
@@ -40,12 +40,18 @@ export class Toast implements ToastInstance {
  static on(name: string, fn: (toast: Toast) => boolean | void): () => void {
    if (!this._hooks.has(name)) this._hooks.set(name, []);
    this._hooks.get(name)!.push(fn);
-    return () => this.off(name, fn);
+    // 用类名引用而非 this，保证返回的取消函数在任意调用上下文可用
+    return () => Toast.off(name, fn);
  }

  static off(name: string, fn: (toast: Toast) => boolean | void): void {
    const list = this._hooks.get(name);
-    if (list) this._hooks.set(name, list.filter(f => f !== fn));
+    if (list) {
+      const next = list.filter(f => f !== fn);
+      // 空数组直接删除 key，避免残留
+      if (next.length === 0) this._hooks.delete(name);
+      else this._hooks.set(name, next);
+    }
  }

  /**
@@ -1,7 +1,7 @@
 /**
 * MetonaToast — 核心类型定义
 * @module types
- * @version 0.4.0
+ * @version 0.5.0
 */

 // ========== 基础类型 ==========
@@ -1,7 +1,7 @@
 /**
 * MetonaToast Utils — 工具函数
 * @module utils
- * @version 0.4.0
+ * @version 0.5.0
 */

 /**
@@ -1,7 +1,7 @@
 /**
 * MetonaToast 覆盖率补充测试 — 目标 95%+
 * @module tests
- * @version 0.4.0
+ * @version 0.5.0
 */

 import MeToast, { Toast, VERSION } from '../src/index';
@@ -809,7 +809,7 @@ describe('api.ts 覆盖率', () => {

  test('getStatus 返回完整状态', () => {
    const status = MeToast.getStatus();
-    expect(status.version).toBe('0.4.0');
+    expect(status.version).toBe('0.5.0');
    expect(status.toasts).toBeGreaterThanOrEqual(0);
    expect(status.theme).toBeDefined();
    expect(status.locale).toBeDefined();
@@ -1080,12 +1080,6 @@ describe('styles.ts 覆盖率', () => {
    expect(typeof unsub).toBe('function');
    unsub();
  });
-
-  test('autoApplySystemTheme 返回取消函数', () => {
-    const unsub = styles.autoApplySystemTheme();
-    expect(typeof unsub).toBe('function');
-    unsub();
-  });
 });

 // ==================================================================
@@ -1261,12 +1255,6 @@ describe('最终补漏', () => {
    expect(typeof loadLocale()).toBe('string');
  });

-  // === styles.ts 剩余 ===
-  test('autoApplySystemTheme 内部逻辑不抛异常', () => {
-    const styles = require('../src/styles.js');
-    expect(() => styles.autoApplySystemTheme()).not.toThrow();
-  });
-
  // === api.ts prompt 流程 ===
  test('prompt 创建后按钮事件绑定', async () => {
    const promise = MeToast.prompt('name?', {
@@ -1568,3 +1556,188 @@ describe('v0.4.0 能力增强', () => {
    expect(MeToast.count()).toBe(2);
  });
 });
+
+// ==================================================================
+// 13. v0.5.0 异常路径与边界覆盖
+// ==================================================================
+describe('v0.5.0 异常路径与边界', () => {
+  beforeEach(() => {
+    jest.clearAllMocks();
+    MeToast._toasts.clear();
+    MeToast.resetConfig();
+    (MeToast as unknown as { _destroyed?: boolean })._destroyed = false;
+    Toast._hooks.clear();
+    Toast._registry.clear();
+    const { _containerCache } = require('../src/toast.js');
+    _containerCache.clear();
+    MeToast.animations.destroy();
+    MeToast.animations.reset();
+  });
+
+  describe('i18n.ts 异常与 fallback', () => {
+    const i18n = require('../src/i18n.js');
+
+    test('t fallback 到 fallbackLocale', () => {
+      i18n.setFallbackLocale('en-US');
+      i18n.removeTranslation('zh-CN', 'retry');
+      expect(i18n.t('retry')).toBe('Retry');
+      i18n.addTranslations('zh-CN', { retry: '重试' });
+      i18n.setFallbackLocale('zh-CN');
+    });
+
+    test('removeTranslation 中间层级缺失提前返回', () => {
+      i18n.addTranslations('ja', { a: { b: 'x' } });
+      expect(() => i18n.removeTranslation('ja', 'a.nonexistent.c')).not.toThrow();
+    });
+
+    test('saveLocale localStorage 异常被捕获', () => {
+      const spy = jest.spyOn(Storage.prototype, 'setItem').mockImplementation(() => { throw new Error('quota'); });
+      expect(() => i18n.saveLocale('en-US')).not.toThrow();
+      spy.mockRestore();
+    });
+
+    test('loadLocale localStorage 异常返回默认', () => {
+      const spy = jest.spyOn(Storage.prototype, 'getItem').mockImplementation(() => { throw new Error('quota'); });
+      expect(typeof i18n.loadLocale()).toBe('string');
+      spy.mockRestore();
+    });
+
+    test('getDefaultLocale 不支持浏览器语言时回退', () => {
+      const orig = Object.getOwnPropertyDescriptor(navigator, 'language');
+      Object.defineProperty(navigator, 'language', { value: 'zz-ZZ', configurable: true });
+      expect(typeof i18n.getDefaultLocale()).toBe('string');
+      if (orig) Object.defineProperty(navigator, 'language', orig);
+    });
+
+    test('locale listener 异常不中断其他监听器', () => {
+      const bad = () => { throw new Error('listener-err'); };
+      const good = jest.fn();
+      i18n.addLocaleListener(bad);
+      i18n.addLocaleListener(good);
+      expect(() => i18n.switchLocale('en-US')).not.toThrow();
+      expect(good).toHaveBeenCalled();
+      i18n.removeLocaleListener(bad);
+      i18n.removeLocaleListener(good);
+      i18n.switchLocale('zh-CN');
+    });
+
+    test('Intl 异常时 format 系列降级返回原始值', () => {
+      const origIntl = (global as Record<string, unknown>).Intl;
+      (global as Record<string, unknown>).Intl = new Proxy(origIntl as object, {
+        get: (t: Record<string, unknown>, p: string) => {
+          if (['NumberFormat', 'DateTimeFormat', 'RelativeTimeFormat', 'PluralRules'].includes(p)) {
+            return class { constructor() { throw new RangeError('invalid'); } };
+          }
+          return (t as Record<string, unknown>)[p];
+        },
+      });
+      expect(i18n.formatNumber(1)).toBe('1');
+      expect(i18n.formatCurrency(1)).toBe('1');
+      expect(i18n.formatPercent(50)).toBe('50%');
+      expect(i18n.formatDate('2026-01-01')).toBe('2026-01-01');
+      expect(typeof i18n.formatRelativeTime(Date.now())).toBe('string');
+      expect(i18n.formatPlural(5)).toBe('other');
+      (global as Record<string, unknown>).Intl = origIntl;
+    });
+
+    test('formatList Intl.ListFormat 缺失时逗号拼接', () => {
+      const origLF = (Intl as unknown as Record<string, unknown>).ListFormat;
+      (Intl as unknown as Record<string, unknown>).ListFormat = undefined;
+      const result = i18n.formatList(['a', 'b']);
+      expect(result).toBe('a, b');
+      (Intl as unknown as Record<string, unknown>).ListFormat = origLF;
+    });
+
+    test('plural 缺失时返回原 key', () => {
+      expect(i18n.plural('missing_plural_key_xyz', 5)).toBe('missing_plural_key_xyz');
+    });
+  });
+
+  describe('themes.ts 异常与监听', () => {
+    const themes = require('../src/themes.js');
+
+    test('saveTheme/loadTheme localStorage 异常被捕获', () => {
+      const spy = jest.spyOn(Storage.prototype, 'setItem').mockImplementation(() => { throw new Error('quota'); });
+      expect(() => themes.saveTheme('dark')).not.toThrow();
+      spy.mockRestore();
+      const spy2 = jest.spyOn(Storage.prototype, 'getItem').mockImplementation(() => { throw new Error('quota'); });
+      expect(themes.loadTheme()).toBe('auto');
+      spy2.mockRestore();
+    });
+
+    test('watchSystemTheme 重复调用先移除旧监听', () => {
+      expect(() => { themes.watchSystemTheme(); themes.watchSystemTheme(); }).not.toThrow();
+      themes.unwatchSystemTheme();
+    });
+
+    test('unwatchSystemTheme 清理监听', () => {
+      themes.watchSystemTheme();
+      expect(() => themes.unwatchSystemTheme()).not.toThrow();
+    });
+
+    test('theme listener 异常不中断其他监听器', () => {
+      const bad = () => { throw new Error('theme-listener-err'); };
+      const good = jest.fn();
+      themes.addThemeListener(bad);
+      themes.addThemeListener(good);
+      expect(() => themes.switchTheme('dark')).not.toThrow();
+      expect(good).toHaveBeenCalled();
+      themes.removeThemeListener(bad);
+      themes.removeThemeListener(good);
+      themes.switchTheme('auto');
+    });
+
+    test('removeThemeCSS 移除已存在样式', () => {
+      themes.applyThemeCSS('dark');
+      expect(() => themes.removeThemeCSS()).not.toThrow();
+    });
+  });
+
+  describe('styles.ts 边界', () => {
+    const styles = require('../src/styles.js');
+
+    test('applyThemeVariables 先移除旧样式再追加', () => {
+      const config = { bg: '#fff', text: '#000', border: '#ccc', shadow: 'none', hoverShadow: 'none', progressBg: '#eee', closeHoverBg: '#ddd' };
+      styles.applyThemeVariables(config);
+      styles.applyThemeVariables(config);
+      const els = document.querySelectorAll('#metona-toast-custom-styles');
+      expect(els.length).toBeLessThanOrEqual(1);
+      styles.clearThemeVariables();
+    });
+
+    test('watchSystemTheme 无 matchMedia 时返回空函数', () => {
+      const orig = (window as unknown as Record<string, unknown>).matchMedia;
+      (window as unknown as Record<string, unknown>).matchMedia = undefined;
+      const unsub = styles.watchSystemTheme(jest.fn());
+      expect(unsub).toBeInstanceOf(Function);
+      (window as unknown as Record<string, unknown>).matchMedia = orig;
+    });
+  });
+
+  describe('api.ts use 预设插件', () => {
+    test('use persistence 从 localStorage 恢复配置', () => {
+      localStorage.setItem('metona-toast-config', JSON.stringify({ duration: 3000 }));
+      MeToast.use('persistence');
+      expect(MeToast.getConfig().duration).toBe(3000);
+      MeToast.plugins.unregister('persistence');
+      localStorage.removeItem('metona-toast-config');
+      MeToast.resetConfig();
+    });
+
+    test('use accessibility 注册朗读钩子', () => {
+      const announceSpy = jest.spyOn(console, 'log').mockImplementation(() => {});
+      MeToast.use('accessibility');
+      MeToast.success('announce-test');
+      MeToast.plugins.unregister('accessibility');
+      announceSpy.mockRestore();
+    });
+
+    test('重复 use persistence 不重复注册保存钩子', () => {
+      localStorage.removeItem('metona-toast-config');
+      MeToast.use('persistence');
+      MeToast.use('persistence');
+      MeToast.plugins.unregister('persistence');
+      expect(Toast._hooks.has('afterClose')).toBe(false);
+    });
+  });
+});
@@ -0,0 +1,369 @@
+/**
+ * MetonaToast DOM 交互测试 — 基于 jsdom 真实 DOM 事件驱动
+ * @module tests
+ * @version 0.5.0
+ */
+
+import MeToast, { Toast } from '../src/index';
+import type { ToastInstance } from '../src/types';
+
+// jsdom polyfill: PointerEvent 相关方法
+if (typeof Element !== 'undefined') {
+  if (!(Element.prototype as unknown as { setPointerCapture?: unknown }).setPointerCapture) {
+    (Element.prototype as unknown as Record<string, unknown>).setPointerCapture = jest.fn();
+  }
+  if (!(Element.prototype as unknown as { releasePointerCapture?: unknown }).releasePointerCapture) {
+    (Element.prototype as unknown as Record<string, unknown>).releasePointerCapture = jest.fn();
+  }
+}
+
+const pointer = (type: string, x: number, y: number): PointerEvent =>
+  new MouseEvent(type, { clientX: x, clientY: y, bubbles: true }) as unknown as PointerEvent;
+
+beforeEach(() => {
+  jest.clearAllMocks();
+  MeToast._toasts.clear();
+  MeToast.resetConfig();
+  (MeToast as unknown as { _destroyed?: boolean })._destroyed = false;
+  Toast._hooks.clear();
+  Toast._registry.clear();
+  const { _containerCache } = require('../src/toast.js');
+  _containerCache.clear();
+  MeToast.animations.destroy();
+  MeToast.animations.reset();
+});
+
+describe('toast.ts — DOM 交互', () => {
+  test('onShow 回调异常被捕获', () => {
+    const consoleError = jest.spyOn(console, 'error').mockImplementation(() => {});
+    MeToast.success('x', { onShow: () => { throw new Error('show-err'); } });
+    expect(consoleError).toHaveBeenCalled();
+    consoleError.mockRestore();
+  });
+
+  test('onUpdate 回调异常被捕获', () => {
+    const consoleError = jest.spyOn(console, 'error').mockImplementation(() => {});
+    const t = MeToast.success('x', { onUpdate: () => { throw new Error('upd-err'); } });
+    t.update({ message: 'y' });
+    expect(consoleError).toHaveBeenCalled();
+    consoleError.mockRestore();
+  });
+
+  test('_applyStyles 字符串 width 生效', () => {
+    const t = MeToast.info({ message: 'w', width: '80%' });
+    expect(t.el!.style.width).toBe('80%');
+  });
+
+  test('点击 close 按钮关闭 toast 且不触发 click 钩子', () => {
+    const fn = jest.fn();
+    Toast.on('click', fn);
+    const t = MeToast.info('test');
+    const closeBtn = t.el!.querySelector('.met-close') as HTMLElement;
+    closeBtn.dispatchEvent(new MouseEvent('click', { bubbles: true }));
+    expect(t.closing).toBe(true);
+    expect(fn).not.toHaveBeenCalled();
+    Toast.off('click', fn);
+  });
+
+  test('点击主体触发 onClick 并关闭', () => {
+    const onClick = jest.fn();
+    const t = MeToast.info('test', { onClick });
+    t.el!.dispatchEvent(new MouseEvent('click', { bubbles: true }));
+    expect(onClick).toHaveBeenCalledWith(t);
+    expect(t.closing).toBe(true);
+  });
+
+  test('onClick 回调异常被捕获', () => {
+    const consoleError = jest.spyOn(console, 'error').mockImplementation(() => {});
+    const t = MeToast.info('test', { onClick: () => { throw new Error('click-err'); } });
+    t.el!.dispatchEvent(new MouseEvent('click', { bubbles: true }));
+    expect(consoleError).toHaveBeenCalled();
+    consoleError.mockRestore();
+  });
+
+  test('closeOnClick false 时点击不关闭但触发 click 钩子', () => {
+    const fn = jest.fn();
+    Toast.on('click', fn);
+    const t = MeToast.info('test', { closeOnClick: false });
+    t.el!.dispatchEvent(new MouseEvent('click', { bubbles: true }));
+    expect(t.closing).toBe(false);
+    expect(fn).toHaveBeenCalled();
+    Toast.off('click', fn);
+  });
+
+  test('hover 触发暂停/恢复与 hover 钩子', () => {
+    const fn = jest.fn();
+    Toast.on('hover', fn);
+    const t = MeToast.info({ message: 'h', duration: 5000 });
+    t.el!.dispatchEvent(new MouseEvent('mouseenter', { bubbles: true }));
+    expect(t.paused).toBe(true);
+    t.el!.dispatchEvent(new MouseEvent('mouseleave', { bubbles: true }));
+    expect(t.paused).toBe(false);
+    expect(fn.mock.calls.length).toBeGreaterThanOrEqual(2);
+    Toast.off('hover', fn);
+  });
+
+  test('animationstart/animationend 触发钩子', () => {
+    const start = jest.fn();
+    const end = jest.fn();
+    Toast.on('animationStart', start);
+    Toast.on('animationEnd', end);
+    const t = MeToast.info('a');
+    t.el!.dispatchEvent(new Event('animationstart'));
+    t.el!.dispatchEvent(new Event('animationend'));
+    expect(start).toHaveBeenCalled();
+    expect(end).toHaveBeenCalled();
+    Toast.off('animationStart', start);
+    Toast.off('animationEnd', end);
+  });
+
+  test('拖拽 down→move→up 超过阈值触发关闭', (done) => {
+    const t = MeToast.info('drag', { duration: 5000 });
+    const el = t.el!;
+    el.dispatchEvent(pointer('pointerdown', 100, 50));
+    el.dispatchEvent(pointer('pointermove', 250, 60));
+    expect(el.style.transform).toContain('translate(150px');
+    expect(el.style.opacity).toBe('0.25');
+    el.dispatchEvent(pointer('pointerup', 250, 60));
+    expect(el.style.opacity).toBe('0');
+    setTimeout(() => {
+      expect(t.closing).toBe(true);
+      done();
+    }, 350);
+  });
+
+  test('拖拽未超阈值松手恢复', () => {
+    const t = MeToast.info('drag2', { duration: 5000 });
+    const el = t.el!;
+    el.dispatchEvent(pointer('pointerdown', 100, 50));
+    el.dispatchEvent(pointer('pointermove', 150, 60));
+    el.dispatchEvent(pointer('pointerup', 150, 60));
+    expect(t.closing).toBe(false);
+    expect(t.paused).toBe(false);
+    expect(el.style.transform).toBe('');
+  });
+
+  test('拖拽触发 dragStart/dragEnd 钩子', () => {
+    const start = jest.fn();
+    const end = jest.fn();
+    Toast.on('dragStart', start);
+    Toast.on('dragEnd', end);
+    const t = MeToast.info('d', { duration: 5000 });
+    const el = t.el!;
+    el.dispatchEvent(pointer('pointerdown', 0, 0));
+    el.dispatchEvent(pointer('pointerup', 0, 0));
+    expect(start).toHaveBeenCalled();
+    expect(end).toHaveBeenCalled();
+    Toast.off('dragStart', start);
+    Toast.off('dragEnd', end);
+  });
+
+  test('pointercancel 等价于 pointerup', () => {
+    const t = MeToast.info('pc', { duration: 5000 });
+    const el = t.el!;
+    el.dispatchEvent(pointer('pointerdown', 10, 10));
+    el.dispatchEvent(pointer('pointercancel', 10, 10));
+    expect(t.closing).toBe(false);
+  });
+
+  test('拖拽从 close 按钮按下时早退', () => {
+    const t = MeToast.info('dc', { duration: 5000 });
+    const closeBtn = t.el!.querySelector('.met-close') as HTMLElement;
+    closeBtn.dispatchEvent(pointer('pointerdown', 0, 0));
+    expect(t.paused).toBe(false);
+  });
+
+  test('close 非 immediate 走离场动画并清理', (done) => {
+    const t = MeToast.info('anim-close');
+    t.close();
+    expect(t.el!.classList.contains('met-leaving')).toBe(true);
+    setTimeout(() => {
+      expect(t.el).toBeNull();
+      expect(MeToast.count()).toBe(0);
+      done();
+    }, 400);
+  });
+
+  test('updatePosition 移动到新容器', () => {
+    const t = MeToast.info('move', { position: 'top-left' });
+    t.updatePosition('bottom-right');
+    expect(t.config.position).toBe('bottom-right');
+    expect(t.el!.parentElement!.className).toContain('bottom-right');
+  });
+
+  test('updatePosition 同位置直接返回', () => {
+    const t = MeToast.info('same');
+    const container = t.el!.parentElement;
+    t.updatePosition('top-right');
+    expect(t.el!.parentElement).toBe(container);
+  });
+
+  test('_limitToasts registry 无实例时走 _removeToast 兜底', () => {
+    const el = document.createElement('div');
+    const ghost = document.createElement('div');
+    ghost.dataset.id = 'ghost-id';
+    (el.querySelectorAll as unknown) = () => [ghost];
+    const t = new Toast({ message: 'x', max: 0 });
+    expect(() => t._limitToasts(el)).not.toThrow();
+  });
+
+  test('remove() 清理注册表与内存', () => {
+    const t = MeToast.info('rm');
+    expect(Toast._registry.has(t.id)).toBe(true);
+    t.remove();
+    expect(Toast._registry.has(t.id)).toBe(false);
+    expect(MeToast.count()).toBe(0);
+  });
+});
+
+describe('api.ts — 对话框与按钮交互', () => {
+  test('confirm 点击确认按钮 resolve true', async () => {
+    const promise = MeToast.confirm('确定删除？');
+    await new Promise(r => setTimeout(r, 10));
+    const toast = MeToast.getToasts()[0];
+    (toast.el!.querySelector('.met-confirm-btn') as HTMLElement).click();
+    const result = await promise;
+    expect(result).toBe(true);
+  });
+
+  test('confirm 点击取消按钮 resolve false', async () => {
+    const promise = MeToast.confirm('确定删除？');
+    await new Promise(r => setTimeout(r, 10));
+    const toast = MeToast.getToasts()[0];
+    (toast.el!.querySelector('.met-cancel-btn') as HTMLElement).click();
+    const result = await promise;
+    expect(result).toBe(false);
+  });
+
+  test('prompt Enter 提交输入值', async () => {
+    const promise = MeToast.prompt('请输入姓名');
+    await new Promise(r => setTimeout(r, 10));
+    const toast = MeToast.getToasts()[0];
+    const input = toast.el!.querySelector('.met-input') as HTMLInputElement;
+    input.value = '张三';
+    input.dispatchEvent(new KeyboardEvent('keydown', { key: 'Enter', bubbles: true }));
+    const result = await promise;
+    expect(result).toBe('张三');
+  });
+
+  test('prompt 点击提交按钮', async () => {
+    const promise = MeToast.prompt('请输入姓名');
+    await new Promise(r => setTimeout(r, 10));
+    const toast = MeToast.getToasts()[0];
+    const input = toast.el!.querySelector('.met-input') as HTMLInputElement;
+    input.value = '李四';
+    (toast.el!.querySelector('.met-submit-btn') as HTMLElement).click();
+    const result = await promise;
+    expect(result).toBe('李四');
+  });
+
+  test('prompt 点击取消按钮 resolve null', async () => {
+    const promise = MeToast.prompt('请输入姓名');
+    await new Promise(r => setTimeout(r, 10));
+    const toast = MeToast.getToasts()[0];
+    (toast.el!.querySelector('.met-cancel-btn') as HTMLElement).click();
+    const result = await promise;
+    expect(result).toBeNull();
+  });
+
+  test('action 按钮点击触发回调并关闭', async () => {
+    const onClick = jest.fn();
+    const a = MeToast.action('msg', [{ text: 'OK', onClick }]);
+    await new Promise(r => setTimeout(r, 10));
+    (a.toast.el!.querySelector('.met-action-btn-0') as HTMLElement).click();
+    expect(onClick).toHaveBeenCalledWith(a.toast);
+    expect(a.toast.closing).toBe(true);
+  });
+
+  test('action 按钮 close:false 点击不关闭', async () => {
+    const onClick = jest.fn();
+    const a = MeToast.action('msg', [{ text: 'Keep', onClick, close: false }]);
+    await new Promise(r => setTimeout(r, 10));
+    (a.toast.el!.querySelector('.met-action-btn-0') as HTMLElement).click();
+    expect(a.toast.closing).toBe(false);
+  });
+
+  test('action 按钮 onClick 异常被捕获', async () => {
+    const consoleError = jest.spyOn(console, 'error').mockImplementation(() => {});
+    const a = MeToast.action('msg', [{ text: 'Boom', onClick: () => { throw new Error('act-err'); } }]);
+    await new Promise(r => setTimeout(r, 10));
+    (a.toast.el!.querySelector('.met-action-btn-0') as HTMLElement).click();
+    expect(consoleError).toHaveBeenCalled();
+    consoleError.mockRestore();
+  });
+
+  test('countdown onComplete 异常被捕获', (done) => {
+    const consoleError = jest.spyOn(console, 'error').mockImplementation(() => {});
+    MeToast.countdown('{seconds} 秒', 1, { onComplete: () => { throw new Error('cd-err'); } });
+    setTimeout(() => {
+      expect(consoleError).toHaveBeenCalled();
+      consoleError.mockRestore();
+      done();
+    }, 1600);
+  });
+
+  test('loading control 支持 update 与 dismiss', () => {
+    const l = MeToast.loading('l1');
+    l.update({ message: 'l2' });
+    const toast = MeToast.find(l.id);
+    expect(toast!.message).toBe('l2');
+    l.dismiss();
+    expect(toast!.closing).toBe(true);
+  });
+
+  test('group 单对象参数分支', () => {
+    const g = MeToast.group('obj-group');
+    const t = g.show({ message: 'obj-arg' });
+    expect(t.group).toBe('obj-group');
+    expect(t.message).toBe('obj-arg');
+    g.dismiss();
+  });
+
+  test('queue 消息级 onClose 异常被静默捕获', async () => {
+    const consoleError = jest.spyOn(console, 'error').mockImplementation(() => {});
+    const q = MeToast.queue([
+      { message: 'a', onClose: () => { throw new Error('q-err'); } },
+    ], { delay: 5, duration: 10 });
+    await q;
+    expect(consoleError).not.toHaveBeenCalled();
+    consoleError.mockRestore();
+  });
+
+  test('_remove 从内存移除指定 id', () => {
+    const t = MeToast.info('x');
+    MeToast._remove(t.id);
+    expect(MeToast.count()).toBe(0);
+  });
+});
+
+describe('plugins.ts — 异常与钩子管理', () => {
+  test('插件 install 抛错被捕获', () => {
+    const consoleError = jest.spyOn(console, 'error').mockImplementation(() => {});
+    MeToast.plugins.register('bad-install', { name: 'bad-install', install: () => { throw new Error('install-err'); } });
+    expect(consoleError).toHaveBeenCalled();
+    consoleError.mockRestore();
+  });
+
+  test('keyboard 插件 install/uninstall 移除事件监听', () => {
+    MeToast.use('keyboard');
+    MeToast.plugins.unregister('keyboard');
+    expect(MeToast.plugins.has('keyboard')).toBe(false);
+  });
+
+  test('persistence 插件 save 异常被捕获', () => {
+    const spy = jest.spyOn(Storage.prototype, 'setItem').mockImplementation(() => { throw new Error('quota'); });
+    const pluginUtils = require('../src/plugins.js').pluginUtils;
+    const preset = pluginUtils.getPreset('persistence');
+    const saveFn = (preset as Record<string, (c: unknown) => void>).save;
+    expect(() => saveFn({ duration: 3000 })).not.toThrow();
+    spy.mockRestore();
+  });
+
+  test('persistence 插件 uninstall removeItem 异常被捕获', () => {
+    const spy = jest.spyOn(Storage.prototype, 'removeItem').mockImplementation(() => { throw new Error('quota'); });
+    const pluginUtils = require('../src/plugins.js').pluginUtils;
+    const preset = pluginUtils.getPreset('persistence');
+    expect(() => preset?.uninstall?.()).not.toThrow();
+    spy.mockRestore();
+  });
+});
@@ -1,7 +1,7 @@
 /**
 * MetonaToast 单元测试
 * @module tests
- * @version 0.4.0
+ * @version 0.5.0
 */

 import MeToast, { Toast, VERSION } from '../src/index';
@@ -105,8 +105,8 @@ const mockWindow = {

  describe('版本信息', () => {
    test('应该有正确的版本号', () => {
-      expect(VERSION).toBe('0.4.0');
-      expect(MeToast.version).toBe('0.4.0');
+      expect(VERSION).toBe('0.5.0');
+      expect(MeToast.version).toBe('0.5.0');
    });
  });

@@ -526,7 +526,7 @@ const mockWindow = {
    test('应该能够获取状态信息', () => {
      MeToast.success('消息');
      const status = MeToast.getStatus();
-      expect(status.version).toBe('0.4.0');
+      expect(status.version).toBe('0.5.0');
      expect(status.toasts).toBeGreaterThanOrEqual(0);
      expect(status.theme).toBeDefined();
      expect(status.locale).toBeDefined();
@@ -1,15 +1,19 @@
 /**
 * MetonaToast React 适配器测试
 * @module tests
- * @version 0.4.0
+ * @version 0.5.0
 */

 import React from 'react';
 import { renderToString } from 'react-dom/server';
+import { createRoot } from 'react-dom/client';
+import { act } from 'react';
 import MeToast, { Toast } from '../src/index';
-import { createBoundApi, Toast as ToastComponent } from '../src/react';
+import { createBoundApi, Toast as ToastComponent, useToast } from '../src/react';
 import type { ToastInstance } from '../src/types';

+(globalThis as Record<string, unknown>).IS_REACT_ACT_ENVIRONMENT = true;
+
 beforeEach(() => {
  jest.clearAllMocks();
  MeToast._toasts.clear();
@@ -87,4 +91,59 @@ describe('React 适配器 — Toast 组件', () => {
    const html = renderToString(React.createElement(ToastComponent, { message: 'y', type: 'custom-type' }));
    expect(html).toBe('');
  });
+
+  test('组件挂载创建 toast，卸载自动移除', () => {
+    const host = document.createElement('div');
+    document.body.appendChild(host);
+    const root = createRoot(host);
+    act(() => { root.render(React.createElement(ToastComponent, { message: 'mounted', type: 'success' })); });
+    expect(MeToast.count()).toBe(1);
+    act(() => { root.unmount(); });
+    expect(MeToast.count()).toBe(0);
+    host.remove();
+  });
+
+  test('组件 autoClose:false 卸载不移除', () => {
+    const host = document.createElement('div');
+    document.body.appendChild(host);
+    const root = createRoot(host);
+    act(() => { root.render(React.createElement(ToastComponent, { message: 'keep', type: 'error', autoClose: false })); });
+    expect(MeToast.count()).toBe(1);
+    act(() => { root.unmount(); });
+    expect(MeToast.count()).toBe(1);
+    MeToast.dismiss();
+    host.remove();
+  });
+
+  test('组件 message 变化重新创建实例', () => {
+    const host = document.createElement('div');
+    document.body.appendChild(host);
+    const root = createRoot(host);
+    act(() => { root.render(React.createElement(ToastComponent, { message: 'v1', type: 'info' })); });
+    act(() => { root.render(React.createElement(ToastComponent, { message: 'v2', type: 'warning' })); });
+    expect(MeToast.count()).toBe(1);
+    const t = MeToast.getToasts()[0];
+    expect(t.message).toBe('v2');
+    expect(t.type).toBe('warning');
+    act(() => { root.unmount(); });
+    expect(MeToast.count()).toBe(0);
+    host.remove();
+  });
+
+  test('useToast 组件内创建的 toast 在卸载时清理', () => {
+    const Harness = (): React.ReactElement => {
+      const toast = useToast() as Record<string, (m: string) => ToastInstance>;
+      return React.createElement('button', { onClick: () => toast.info('tracked') });
+    };
+    const host = document.createElement('div');
+    document.body.appendChild(host);
+    const root = createRoot(host);
+    act(() => { root.render(React.createElement(Harness)); });
+    const btn = host.querySelector('button')!;
+    act(() => { btn.dispatchEvent(new MouseEvent('click', { bubbles: true })); });
+    expect(MeToast.count()).toBe(1);
+    act(() => { root.unmount(); });
+    expect(MeToast.count()).toBe(0);
+    host.remove();
+  });
 });
@@ -2,29 +2,38 @@
 * 环境隔离测试 — 需要切换 document/window/localStorage 环境并调用 jest.resetModules()。
 * 独立成文件：resetModules 会清空模块缓存，若与其他测试同文件会导致
 * 后续 require 拿到新模块实例、与 import 时绑定的实例状态分裂。
+ * 注：jsdom 以 getter 暴露 document/window，普通赋值无效，须用 defineProperty 覆盖。
 * @module tests
- * @version 0.4.0
+ * @version 0.5.0
 */

+/** 临时移除全局对象，返回恢复函数 */
+const hideGlobal = (key: string): (() => void) => {
+  const desc = Object.getOwnPropertyDescriptor(global, key);
+  Object.defineProperty(global, key, { value: undefined, configurable: true, writable: true });
+  return () => {
+    if (desc) Object.defineProperty(global, key, desc);
+    else delete (global as Record<string, unknown>)[key];
+  };
+};
+
 describe('环境隔离（SSR / localStorage 异常路径）', () => {
  test('escapeHTML SSR 路径（无 document）', () => {
-    const originalDoc = (global as Record<string, unknown>).document;
-    (global as Record<string, unknown>).document = undefined;
+    const restore = hideGlobal('document');
    jest.resetModules();
    const { escapeHTML } = require('../src/utils.js');
    const result = escapeHTML('<script>alert("xss")</script>');
    expect(result).not.toContain('<script>');
    expect(result).toContain('&lt;script&gt;');
-    (global as Record<string, unknown>).document = originalDoc;
+    restore();
  });

  test('prefersDark 无 window 时返回 false', () => {
-    const originalWindow = (global as Record<string, unknown>).window;
-    (global as Record<string, unknown>).window = undefined;
+    const restore = hideGlobal('window');
    jest.resetModules();
    const { prefersDark } = require('../src/utils.js');
    expect(prefersDark()).toBe(false);
-    (global as Record<string, unknown>).window = originalWindow;
+    restore();
  });

  test('saveTheme localStorage 异常被捕获', () => {