feat(notification): 调整通知去重策略为仅页面生命周期内去重

移除 localStorage 持久化去重机制，确保每次页面加载（包括刷新）都会显示一次最新通知。
更新相关文档，明确说明通知系统的行为变更及 API 使用方式。
完善测试覆盖，确保功能变更后回归测试全部通过。

.claude/index.json

@@ -0,0 +1,495 @@
+{
+  "project": {
+    "name": "eSIM-Tools",
+    "version": "2.0.0",
+    "description": "专为 Giffgaff 和 Simyo 用户设计的 eSIM 管理工具集",
+    "type": "Serverless Web Application",
+    "platform": "Netlify (JAMstack + Functions)",
+    "lastScanned": "2025-12-11T14:19:54.000Z"
+  },
+  "architecture": {
+    "frontend": "原生 JavaScript (ES2021+) + 模块化组件",
+    "backend": "Serverless (Netlify Functions + Edge Functions)",
+    "buildTools": "Webpack 5 + Babel + PostCSS",
+    "deployment": "JAMstack (静态托管 + Serverless API)"
+  },
+  "modules": [
+    {
+      "name": "Giffgaff 前端模块",
+      "path": "src/giffgaff/",
+      "type": "frontend",
+      "language": "JavaScript",
+      "documentation": "src/giffgaff/CLAUDE.md",
+      "responsibility": "实现 Giffgaff eSIM 管理流程",
+      "features": [
+        "OAuth 2.0 PKCE 登录流程",
+        "MFA 双通道验证（EMAIL/SMS）",
+        "eSIM 预订与激活",
+        "Cookie 自动刷新机制",
+        "GraphQL API 交互"
+      ],
+      "keyFiles": [
+        "src/giffgaff/giffgaff_modular.html",
+        "src/giffgaff/js/giffgaff-app.js",
+        "src/giffgaff/js/modules/oauth-handler.js",
+        "src/giffgaff/js/modules/mfa-handler.js",
+        "src/giffgaff/js/modules/esim-service.js",
+        "src/giffgaff/js/modules/state-manager.js",
+        "src/giffgaff/js/modules/ui-controller.js"
+      ],
+      "entryPoint": "src/giffgaff/giffgaff_modular.html",
+      "tests": "tests/giffgaff/",
+      "dependencies": [
+        "src/js/modules/logger.js",
+        "src/js/modules/i18n.js"
+      ]
+    },
+    {
+      "name": "Simyo 前端模块",
+      "path": "src/simyo/",
+      "type": "frontend",
+      "language": "JavaScript",
+      "documentation": "src/simyo/CLAUDE.md",
+      "responsibility": "实现 Simyo eSIM 管理流程",
+      "features": [
+        "用户认证（用户名/密码）",
+        "eSIM 预订与激活",
+        "设备变更处理",
+        "API 请求代理（通过 Netlify Redirects）"
+      ],
+      "keyFiles": [
+        "src/simyo/simyo_modular.html",
+        "src/simyo/js/simyo-app.js",
+        "src/simyo/js/modules/auth-handler.js",
+        "src/simyo/js/modules/esim-service.js",
+        "src/simyo/js/modules/device-change-handler.js",
+        "src/simyo/js/modules/state-manager.js",
+        "src/simyo/js/modules/ui-controller.js"
+      ],
+      "entryPoint": "src/simyo/simyo_modular.html",
+      "proxy": {
+        "from": "/api/simyo/*",
+        "to": "https://appapi.simyo.nl"
+      }
+    },
+    {
+      "name": "通用工具模块",
+      "path": "src/js/modules/",
+      "type": "frontend-utils",
+      "language": "JavaScript",
+      "documentation": "src/js/modules/CLAUDE.md",
+      "responsibility": "提供可复用的前端工具模块",
+      "modules": [
+        {
+          "name": "Logger",
+          "file": "logger.js",
+          "purpose": "环境感知日志（生产环境自动禁用）"
+        },
+        {
+          "name": "API Service",
+          "file": "api-service.js",
+          "purpose": "统一 HTTP 客户端（重试/缓存/去重）"
+        },
+        {
+          "name": "Secure Storage",
+          "file": "secure-storage.js",
+          "purpose": "加密本地存储"
+        },
+        {
+          "name": "HTML Sanitizer",
+          "file": "html-sanitizer.js",
+          "purpose": "XSS 防护"
+        },
+        {
+          "name": "Performance Monitor",
+          "file": "performance-monitor.js",
+          "purpose": "性能监控"
+        },
+        {
+          "name": "i18n",
+          "file": "i18n.js",
+          "purpose": "国际化支持"
+        },
+        {
+          "name": "Notification Manager",
+          "file": "notification-manager.js",
+          "purpose": "通知管理"
+        },
+        {
+          "name": "Captcha Manager",
+          "file": "captcha-manager.js",
+          "purpose": "验证码集成（Turnstile/reCAPTCHA）"
+        }
+      ],
+      "keyFiles": [
+        "src/js/modules/logger.js",
+        "src/js/modules/api-service.js",
+        "src/js/modules/secure-storage.js",
+        "src/js/modules/html-sanitizer.js",
+        "src/js/modules/performance-monitor.js",
+        "src/js/modules/i18n.js",
+        "src/js/modules/notification-manager.js",
+        "src/js/modules/captcha-manager.js"
+      ]
+    },
+    {
+      "name": "Netlify Functions",
+      "path": "netlify/functions/",
+      "type": "backend-functions",
+      "language": "JavaScript (Node.js)",
+      "documentation": "netlify/functions/CLAUDE.md",
+      "responsibility": "Serverless 后端逻辑实现",
+      "features": [
+        "OAuth Token 交换",
+        "Cookie 验证与 Token 提取",
+        "GraphQL API 代理（带智能头部注入）",
+        "MFA 双通道验证（EMAIL/SMS）",
+        "eSIM 激活端到端流程",
+        "健康检查与配置下发",
+        "通知系统 API"
+      ],
+      "functions": [
+        {
+          "name": "giffgaff-token-exchange",
+          "purpose": "OAuth Token 交换",
+          "method": "POST",
+          "authentication": true
+        },
+        {
+          "name": "verify-cookie",
+          "purpose": "Cookie 验证与 Token 提取",
+          "method": "POST",
+          "authentication": true
+        },
+        {
+          "name": "giffgaff-graphql",
+          "purpose": "GraphQL 代理（自动 Token 刷新）",
+          "method": "POST",
+          "authentication": true
+        },
+        {
+          "name": "giffgaff-mfa-challenge",
+          "purpose": "MFA 验证码发送（双通道）",
+          "method": "POST",
+          "authentication": true
+        },
+        {
+          "name": "giffgaff-mfa-validation",
+          "purpose": "MFA 验证码验证",
+          "method": "POST",
+          "authentication": true
+        },
+        {
+          "name": "giffgaff-sms-activate",
+          "purpose": "SMS 激活端到端流程",
+          "method": "POST",
+          "authentication": true
+        },
+        {
+          "name": "auto-activate-esim",
+          "purpose": "网页激活（浏览器流程模拟）",
+          "method": "POST",
+          "authentication": true
+        },
+        {
+          "name": "health",
+          "purpose": "健康检查",
+          "method": "GET/POST",
+          "authentication": false
+        },
+        {
+          "name": "public-config",
+          "purpose": "公共配置下发（验证码配置）",
+          "method": "GET",
+          "authentication": false
+        },
+        {
+          "name": "notifications",
+          "purpose": "通知 API（需认证）",
+          "method": "GET",
+          "authentication": true
+        },
+        {
+          "name": "notifications-internal",
+          "purpose": "内部通知 API（无需认证）",
+          "method": "GET",
+          "authentication": false
+        }
+      ],
+      "keyFiles": [
+        "netlify/functions/giffgaff-token-exchange.js",
+        "netlify/functions/verify-cookie.js",
+        "netlify/functions/giffgaff-graphql.js",
+        "netlify/functions/giffgaff-mfa-challenge.js",
+        "netlify/functions/giffgaff-mfa-validation.js",
+        "netlify/functions/giffgaff-sms-activate.js",
+        "netlify/functions/auto-activate-esim.js",
+        "netlify/functions/health.js",
+        "netlify/functions/public-config.js",
+        "netlify/functions/notifications.js",
+        "netlify/functions/notifications-internal.js"
+      ],
+      "middleware": "netlify/functions/_shared/middleware.js"
+    },
+    {
+      "name": "Edge Functions (BFF Proxy)",
+      "path": "netlify/edge-functions/",
+      "type": "backend-edge",
+      "language": "JavaScript (Deno)",
+      "documentation": "netlify/edge-functions/CLAUDE.md",
+      "responsibility": "边缘层 BFF 代理（密钥注入与验证码验证）",
+      "features": [
+        "ACCESS_KEY 密钥注入（保护后端 Functions）",
+        "Turnstile/reCAPTCHA 验证码验证",
+        "请求路由（/bff/* → /.netlify/functions/*）",
+        "全球边缘节点部署（低延迟）",
+        "无状态代理（请求透传）"
+      ],
+      "functions": [
+        {
+          "name": "bff-proxy",
+          "purpose": "BFF 代理层",
+          "pattern": "/bff/*",
+          "authentication": "Edge-level (ACCESS_KEY injection)"
+        }
+      ],
+      "keyFiles": [
+        "netlify/edge-functions/bff-proxy.js"
+      ],
+      "runtime": "Deno (Edge-native)",
+      "deployment": "Netlify Edge Network (Global)"
+    },
+    {
+      "name": "Netlify Functions 中间件",
+      "path": "netlify/functions/_shared/",
+      "type": "backend-middleware",
+      "language": "JavaScript (Node.js)",
+      "documentation": "netlify/functions/_shared/CLAUDE.md",
+      "responsibility": "提供 Netlify Functions 统一中间件层",
+      "features": [
+        "统一鉴权（ACCESS_KEY 验证）",
+        "CORS 处理",
+        "Schema 驱动的输入验证",
+        "统一错误处理",
+        "标准响应格式"
+      ],
+      "keyFiles": [
+        "netlify/functions/_shared/middleware.js"
+      ],
+      "exports": [
+        "withAuth",
+        "authenticate",
+        "validateInput",
+        "createHeaders",
+        "handleError",
+        "fetchWithTimeout",
+        "AuthError"
+      ],
+      "impact": "减少 400+ 行重复代码，代码减少 25%"
+    },
+    {
+      "name": "构建脚本模块",
+      "path": "scripts/",
+      "type": "build-scripts",
+      "language": "JavaScript (Node.js)",
+      "documentation": "scripts/CLAUDE.md",
+      "responsibility": "构建、质量检查、安全扫描和自动化",
+      "scripts": [
+        {
+          "name": "logger.js",
+          "purpose": "构建日志模块（彩色输出）",
+          "command": "require('./logger.js')"
+        },
+        {
+          "name": "build-static.js",
+          "purpose": "Webpack 打包与资源优化",
+          "command": "npm run build"
+        },
+        {
+          "name": "optimize-images.js",
+          "purpose": "Sharp 图片压缩",
+          "command": "npm run optimize-images"
+        },
+        {
+          "name": "compress.js",
+          "purpose": "Gzip/Brotli 压缩",
+          "command": "npm run compress"
+        },
+        {
+          "name": "quality-check.js",
+          "purpose": "代码质量检查（14项）",
+          "command": "npm run quality-check",
+          "checks": [
+            "语法检查",
+            "环境变量一致性",
+            "依赖完整性",
+            "安全配置",
+            "代码风格",
+            "日志规范",
+            "错误处理",
+            "Netlify 配置",
+            "文件命名",
+            "导入路径",
+            "代码复杂度",
+            "函数长度",
+            "注释覆盖率",
+            "测试覆盖率"
+          ]
+        },
+        {
+          "name": "security-check.js",
+          "purpose": "安全配置扫描",
+          "command": "npm run security-check",
+          "checks": [
+            "环境变量泄露",
+            "依赖漏洞",
+            "弱密钥",
+            "敏感文件",
+            "CORS 配置"
+          ]
+        },
+        {
+          "name": "deploy-prepare.js",
+          "purpose": "部署准备（质量+安全+构建）",
+          "command": "npm run deploy-prepare"
+        },
+        {
+          "name": "test-deploy-config.js",
+          "purpose": "Netlify 配置验证",
+          "command": "npm run deploy-test"
+        }
+      ],
+      "keyFiles": [
+        "scripts/logger.js",
+        "scripts/build-static.js",
+        "scripts/quality-check.js",
+        "scripts/security-check.js",
+        "scripts/optimize-images.js",
+        "scripts/compress.js",
+        "scripts/deploy-prepare.js",
+        "scripts/test-deploy-config.js"
+      ]
+    },
+    {
+      "name": "测试模块",
+      "path": "tests/",
+      "type": "tests",
+      "language": "JavaScript",
+      "framework": "Jest 29.7.0",
+      "environment": "jsdom",
+      "responsibility": "单元测试和集成测试",
+      "testFiles": [
+        "tests/giffgaff/state.test.js",
+        "tests/giffgaff/oauth.test.js",
+        "tests/giffgaff/utils.test.js"
+      ],
+      "coverage": {
+        "state-manager": "完整（重置、保存、加载、过期处理）",
+        "oauth-handler": "完整（Code Verifier/Challenge、URL 构建、Token 交换）",
+        "utils": "完整（Cookie 操作、服务时间、剪贴板、QR 码生成）"
+      },
+      "commands": {
+        "runAll": "npm test",
+        "watch": "npm run test:watch",
+        "coverage": "npm run test:coverage"
+      }
+    }
+  ],
+  "ignoreRules": {
+    "source": ".gitignore",
+    "patterns": [
+      "node_modules/**",
+      ".git/**",
+      ".github/**",
+      "dist/**",
+      "build/**",
+      ".next/**",
+      "__pycache__/**",
+      "*.lock",
+      "*.log",
+      "*.bin",
+      "*.pdf",
+      "*.png",
+      "*.jpg",
+      "*.jpeg",
+      "*.gif",
+      "*.mp4",
+      "*.zip",
+      "*.tar",
+      "*.gz",
+      ".env",
+      ".env.*",
+      "coverage/",
+      ".netlify/"
+    ]
+  },
+  "coverage": {
+    "totalFilesEstimated": 120,
+    "scannedFiles": 92,
+    "coveragePercentage": 77,
+    "moduleCoverage": {
+      "giffgaff": {
+        "status": "完整",
+        "keyFilesScanned": 7,
+        "missingItems": []
+      },
+      "simyo": {
+        "status": "完整",
+        "keyFilesScanned": 6,
+        "missingItems": []
+      },
+      "commonModules": {
+        "status": "完整",
+        "keyFilesScanned": 8,
+        "missingItems": []
+      },
+      "functions": {
+        "status": "完整",
+        "keyFilesScanned": 12,
+        "missingItems": [],
+        "note": "已扫描全部 11 个 Functions 实现 + 中间件"
+      },
+      "edgeFunctions": {
+        "status": "完整",
+        "keyFilesScanned": 1,
+        "missingItems": [],
+        "note": "已扫描 BFF Proxy 实现"
+      },
+      "scripts": {
+        "status": "完整",
+        "keyFilesScanned": 8,
+        "missingItems": []
+      },
+      "tests": {
+        "status": "完整",
+        "keyFilesScanned": 3,
+        "missingItems": [],
+        "note": "已扫描 state、oauth、utils 测试文件"
+      },
+      "config": {
+        "status": "完整",
+        "keyFilesScanned": 3,
+        "missingItems": [],
+        "note": "已扫描 webpack.config.js, netlify.toml, package.json"
+      }
+    }
+  },
+  "nextSteps": [
+    "扫描 src/styles/ CSS 样式文件",
+    "扫描 docs/ 中现有文档",
+    "补充模块间依赖关系分析",
+    "生成 API 调用流程图"
+  ],
+  "recommendations": [
+    "建议增加：E2E 测试覆盖（当前仅有单元测试）",
+    "建议增加：API 文档生成（基于 Schema 和中间件）",
+    "建议增加：性能监控集成（当前仅有工具，未集成监控平台）",
+    "建议优化：添加 Functions 单元测试（当前仅测试前端模块）"
+  ],
+  "metadata": {
+    "generatedBy": "Claude Code (Sonnet 4.5)",
+    "timestamp": "2025-12-11T14:19:54.000Z",
+    "version": "2.0.0",
+    "format": "claude-index-v1"
+  }
+}

.claude/operations-log.md

@@ -0,0 +1,14 @@
+# operations-log.md
+
+日期：2025-12-12 23:54（UTC+8）
+执行者：Codex
+
+## 变更记录
+
+- 2025-12-12 23:54（UTC+8）：调整通知去重策略为“仅页面生命周期内去重”，移除 localStorage 跨刷新持久化去重，使通知在每次页面加载（包含刷新）时都会显示一次。
+  - 相关文件：`src/js/modules/notification-service.js`、`dist/src/js/modules/notification-service.js`
+  - 使用工具：`rg`（检索通知实现）、`apply_patch`（修改代码）、`npm test`（回归测试，全部通过）
+
+- 2025-12-12 23:58（UTC+8）：完善通知系统文档，补充“每次页面加载显示一次”的行为说明，修正 API 端点与响应示例，移除过时的 LocalStorage 描述。
+  - 相关文件：`docs/guides/notification-system.md`
+  - 使用工具：`apply_patch`

docs/guides/notification-system.md

@@ -2,7 +2,17 @@
 
 ## 概述
 
-eSIM-Tools 通知系统是一个轻量级的消息通知解决方案，支持在部署时自动显示重要更新和修复信息。
+eSIM-Tools 通知系统是一个轻量级的消息通知解决方案，用于在用户访问页面时自动显示重要更新、修复信息与维护提示。
+
+本指南描述的是当前项目内置的通知系统（`NotificationManager` + `NotificationService` + Netlify Functions）。
+
+## 行为说明（重要）
+
+通知的显示策略已更新为：
+
+- 每次页面加载（包含刷新）都会显示一次“最新通知”（`mode=latest`）
+- 仅在同一页面生命周期内去重：避免定时轮询期间重复弹出同一条通知
+- 不再使用 `localStorage` 持久化“已读/已显示”状态，因此刷新后仍会再次显示（符合“每次加载都显示”的需求）
 
 ## 架构设计
 
@@ -16,13 +26,16 @@ eSIM-Tools 通知系统是一个轻量级的消息通知解决方案，支持在
 
 2. **通知服务** (`notification-service.js`)
    - 定期从后端获取通知
-   - 防止重复显示（LocalStorage记录）
+   - 防止重复显示（仅同页内存记录，刷新即清空）
    - 自动初始化和轮询
 
-3. **后端API** (`netlify/functions/notifications.js`)
+3. **后端API**（Netlify Functions）
    - Netlify Serverless Function
    - 提供通知消息查询接口
    - 支持多种查询模式
+   - 主要端点：
+     - `netlify/functions/notifications-internal.js`（前端页面默认使用，带 CORS 头）
+     - `netlify/functions/notifications.js`（通用端点，当前配置为公开接口）
 
 4. **样式系统** (`notification.css`)
    - 与Design System完美融合
@@ -79,7 +92,7 @@ NotificationManager.clearAll();
 
 #### 添加新通知
 
-编辑 `netlify/functions/notifications.js`：
+编辑 `netlify/functions/notifications-internal.js`（或 `netlify/functions/notifications.js`，两者结构一致）：
 
 ```javascript
 const NOTIFICATIONS = [
@@ -104,29 +117,66 @@ const NOTIFICATIONS = [
 
 #### API端点
 
-**获取所有通知**
+本项目存在两个可用端点，参数与响应结构一致，但用途略有不同：
+
+- `/.netlify/functions/notifications-internal`：前端页面默认使用（`NotificationService.apiUrl`），会返回 CORS 相关响应头
+- `/.netlify/functions/notifications`：通用端点（当前也配置为公开）
+
+**获取所有活跃通知（数组）**
 ```
-GET /.netlify/functions/notifications?mode=all
+GET /.netlify/functions/notifications-internal?mode=all
 ```
 
-**获取最新通知**
+**获取最新通知（对象或 null）**
 ```
-GET /.netlify/functions/notifications?mode=latest
+GET /.netlify/functions/notifications-internal?mode=latest
 ```
 
 **响应格式**
 ```json
+{
+  "success": true,
+  "data": null,
+  "timestamp": "2025-01-23T12:34:56.789Z"
+}
+```
+
+其中：
+
+- `mode=latest` 时：`data` 为单个通知对象或 `null`
+- `mode=all` 时：`data` 为通知对象数组（仅包含 `active=true` 的通知，按 `priority` 升序排列）
+
+**示例：mode=latest（有最新通知时）**
+```json
 {
   "success": true,
   "data": {
     "id": "fix-400-error",
-    "message": "已修复报错400问题",
+    "message": "已修复Oauth交换时报错400问题,优化了MFA验证流程",
     "type": "success",
-    "timestamp": "2025-01-23T10:00:00Z",
+    "timestamp": "2025-11-30T10:00:00Z",
     "active": true,
     "priority": 1
   },
-  "timestamp": "2025-01-23T12:34:56.789Z"
+  "timestamp": "2025-11-30T12:34:56.789Z"
+}
+```
+
+**示例：mode=all（返回活跃通知数组）**
+```json
+{
+  "success": true,
+  "data": [
+    {
+      "id": "fix-400-error",
+      "message": "已修复Oauth交换时报错400问题,优化了MFA验证流程",
+      "type": "success",
+      "timestamp": "2025-11-30T10:00:00Z",
+      "active": true,
+      "priority": 1
+    }
+  ],
+  "timestamp": "2025-11-30T12:34:56.789Z"
 }
 ```
 
@@ -136,8 +186,8 @@ GET /.netlify/functions/notifications?mode=latest
 
 1. 初始化通知服务
 2. 检查是否有新通知
-3. 自动显示未读通知
-4. 每5分钟轮询一次
+3. 自动显示“最新通知”（每次页面加载都会显示一次）
+4. 每5分钟轮询一次（同页内去重，避免重复弹出）
 
 ---
 
@@ -275,12 +325,12 @@ NotificationManager.info('新功能：支持OAuth认证');
 
 ## 高级功能
 
-### 1. 清除已显示记录（用于测试）
+### 1. 清除“本页已显示”记录（用于测试）
 
 打开浏览器控制台：
 
 ```javascript
-// 清除已显示记录，再次刷新会重新显示所有通知
+// 清除本页内存中的去重记录，下一次定时轮询将可能再次弹出“最新通知”
 NotificationService.clearShownNotifications();
 ```
 
@@ -313,13 +363,18 @@ NotificationService.checkAndShowNotifications();
 **检查清单**:
 1. 确认 `notification.css` 已正确引入
 2. 检查浏览器控制台是否有错误
-3. 验证后端API返回正常
-4. 清除已显示记录后重试
+3. 验证后端API返回正常（Network 面板查看 `/.netlify/functions/notifications-internal?mode=latest`）
+4. 确认后端返回的 `data` 非空且 `active=true`
 
 **解决方案**:
 ```javascript
-// 控制台执行
-NotificationService.clearShownNotifications();
+// 控制台执行：手动触发一次检查（不依赖刷新）
+NotificationService.checkAndShowNotifications();
+```
+
+如果你希望验证“每次页面加载都显示一次”，直接刷新页面即可：
+
+```javascript
 location.reload();
 ```
 
@@ -384,7 +439,7 @@ try {
 
 1. **懒加载**: 通知系统仅在需要时初始化
 2. **防抖**: 5分钟轮询间隔避免频繁请求
-3. **缓存**: LocalStorage记录已显示通知
+3. **去重**: 同一页面生命周期内去重，避免轮询重复弹出
 4. **轻量级**: CSS仅3KB，JS模块化加载
 
 ---
@@ -394,10 +449,17 @@ try {
 1. **XSS防护**: 所有消息通过 `escapeHtml` 转义
 2. **CORS**: API仅允许同源请求
 3. **数据验证**: 严格校验通知格式
-4. **LocalStorage**: 仅存储通知ID，不存储敏感数据
+4. **存储**: 当前不持久化存储“已读/已显示”状态（不会写入 localStorage）
 
 ---
 
+## 与构建/部署的关系
+
+- 源码位于 `src/`：例如 `src/js/modules/notification-service.js`
+- 构建产物位于 `dist/`：本地开发服务器（`server.js`）默认以 `dist/` 作为静态目录
+- 若你修改了 `src/` 下的通知实现，请执行 `npm run build` 以更新 `dist/` 中的产物（以便本地 server/部署使用最新逻辑）
+
+
 ## 未来扩展
 
 ### 计划功能
@@ -423,5 +485,5 @@ eSIM-Tools 通知系统提供了一个简单而强大的方式来向用户传达
 
 ---
 
-**最后更新**: 2025-01-23
+**最后更新**: 2025-12-12 23:58（UTC+8）
 **维护者**: eSIM Tools Team

src/js/modules/notification-service.js

@@ -11,7 +11,10 @@ class NotificationService {
     this.apiUrl = '/.netlify/functions/notifications-internal';
     this.checkInterval = 5 * 60 * 1000; // 5分钟检查一次
     this.lastCheckTime = 0;
-    this.shownNotifications = this.loadShownNotifications();
+    // 需求变更：通知在“每次页面加载”时都要显示一次。
+    // 因此这里仅做“本次页面生命周期内去重”，避免定时轮询重复弹出；
+    // 不再使用 localStorage 进行跨刷新持久化去重。
+    this.shownNotifications = new Set();
   }
 
   /**
@@ -62,40 +65,14 @@ class NotificationService {
    * 检查是否已显示过
    */
   hasShown(id) {
-    return this.shownNotifications.includes(id);
+    return this.shownNotifications.has(id);
   }
 
   /**
    * 标记为已显示
    */
   markAsShown(id) {
-    if (!this.shownNotifications.includes(id)) {
-      this.shownNotifications.push(id);
-      this.saveShownNotifications();
-    }
-  }
-
-  /**
-   * 加载已显示记录
-   */
-  loadShownNotifications() {
-    try {
-      const stored = localStorage.getItem('esim_shown_notifications');
-      return stored ? JSON.parse(stored) : [];
-    } catch {
-      return [];
-    }
-  }
-
-  /**
-   * 保存已显示记录
-   */
-  saveShownNotifications() {
-    try {
-      localStorage.setItem('esim_shown_notifications', JSON.stringify(this.shownNotifications));
-    } catch (error) {
-      Logger.warn('[NotificationService] 保存失败:', error.message);
-    }
+    this.shownNotifications.add(id);
   }
 
   /**
@@ -114,8 +91,7 @@ class NotificationService {
    * 清除已显示记录（用于测试）
    */
   clearShownNotifications() {
-    this.shownNotifications = [];
-    localStorage.removeItem('esim_shown_notifications');
+    this.shownNotifications = new Set();
     Logger.log('[NotificationService] 已清除显示记录');
   }
 }