feat: add platform audit alert notifications

2026-06-30 06:46:35 +08:00
parent 5bb0512ba7
commit 7ab702f471
24 changed files with 1731 additions and 30 deletions
--- a/.env.example
+++ b/.env.example
@@ -75,6 +75,17 @@ WORKER_PLATFORM_BILLING_ID=platform-billing-1
 WORKER_PLATFORM_DUNNING_BATCH_SIZE=100
 WORKER_PLATFORM_DUNNING_ID=platform-dunning-1

+# Worker 配置：平台审计告警生成和外部通知。
+WORKER_PLATFORM_AUDIT_ALERT_BATCH_SIZE=200
+WORKER_PLATFORM_AUDIT_ALERT_LOOKBACK_DAYS=14
+WORKER_PLATFORM_AUDIT_ALERT_ID=platform-audit-alerts-1
+WORKER_PLATFORM_AUDIT_NOTIFICATION_BATCH_SIZE=50
+WORKER_PLATFORM_AUDIT_NOTIFICATION_MAX_ATTEMPTS=5
+WORKER_PLATFORM_AUDIT_NOTIFICATION_BACKOFF_SECONDS=10,60,300,900,1800
+WORKER_PLATFORM_AUDIT_NOTIFICATION_REQUEST_TIMEOUT_MS=10000
+# 仅本地 fake webhook 测试允许 http://127.0.0.1；生产必须 false
+WORKER_PLATFORM_AUDIT_NOTIFICATION_ALLOW_INSECURE_LOCALHOST=false
+
 # Worker 配置：内容资源复检。异常托管对象会被标记 failed 并从 active 退回 draft。
 WORKER_ASSET_BATCH_SIZE=50
 WORKER_ASSET_MIN_AGE_SECONDS=300
--- a/README.md
+++ b/README.md
@@ -15,11 +15,11 @@
 - 租户后台能力：品牌、主题模板/草稿/发布、域名、公开设置、支付账户、登录配置、私密密钥掩码、活动内容、考试日期、题目反馈处理、用户站内通知查看、激活码、优惠券规则/核销报表、勋章管理/手动发放/签到积分反馈自动发放、成员权限、自定义角色模板、班级/教师/学生范围权限、学生批量导入、批量分班、学生备注、跟进任务、审计日志。
 - 租户内容能力：可配置题库入口、任意深度分类树、考试意向标记、题目集合、顺序/随机/全真模拟蓝图、题目录入/更新、视频绑定、分数线、单词、知识手册、资料资源台账、题目/单词/知识手册/分数线/视频 JSON/CSV/Excel 批量导入。
 - 学生端能力：题库入口、分类树、题目集合、顺序/随机/模考 session 组卷快照、答题、错题本、收藏夹、背单词卡片学习/发音/收藏练习、个人中心、站内通知、勋章、考试倒计时、签到积分、积分活动任务、积分兑换、题目反馈、排行榜、分数线、AI 择校推荐、题目视频、订单详情/状态轮询、优惠券领取/抵扣、权益、激活码预检查/兑换、资料下载；签到、积分阈值、反馈解决和积分活动可返回自动获得勋章结果，反馈处理/奖励、勋章发放和积分兑换会写入用户站内通知。
- 平台后台能力：租户管理、租户详情、账务资料维护、平台审计日志查询和 CSV/JSON 导出、平台审计告警规则/开放告警查询/确认/解决、SaaS 套餐、订阅、订阅账单候选预览/dry-run/批量生成、自动计费 worker、账单、服务费收款、逾期标记、内部催缴台账、用量记录、公共题库授权。
+- 平台后台能力：租户管理、租户详情、账务资料维护、平台审计日志查询和 CSV/JSON 导出、平台审计告警规则/开放告警查询/确认/解决、平台审计告警外部通知渠道和发送事件、SaaS 套餐、订阅、订阅账单候选预览/dry-run/批量生成、自动计费 worker、账单、服务费收款、逾期标记、内部催缴台账、用量记录、公共题库授权。
 - 公共题库商业化能力：租户可采纳平台授权题库为本租户副本，并可手动或由 worker 自动同步平台新增/更新题目；同步会保护租户自改题目，返回冲突而不覆盖，后台可查询冲突明细。
 - 题库导出能力：租户内容编辑可按题目集合、内容入口或分类节点导出 JSON、`paper_json`、打印 payload、PDF、Word 和每日一练图片 ZIP 素材包，后端强制租户隔离、答案/解析开关、复合题子题脱敏、导出 job 和审计；PDF/Word/ZIP 由 exports worker 生成水印文件或运营素材并发布到 `content_assets`；`daily_practice` 支持每日一练九宫格 metadata、PDF/Word 版式、9 张 PNG/SVG 卡片和拼图包。
 - 销售/代理/CRM 增长链路：邀请码、扫码/分享事件、首绑客资保护、销售统计、团队关系、CRM 配置、跟进分配策略和队列。
- `apps/worker` 后台任务进程：CRM webhook 队列消费、generic/钉钉/飞书/企微机器人发送、签名、失败重试和日志；commerce worker 可补偿查询微信/支付宝支付和退款状态；provider-bills worker 可下载微信/支付宝官方账单并导入资金对账；platform-billing worker 可自动为即将到期且未开票的 SaaS 订阅生成服务费账单并写审计；platform-dunning worker 可扫描逾期未结清服务费账单、标记 overdue、写内部催缴记录和审计；platform-audit-alerts worker 可把高风险平台审计动作转换为内部告警并递归脱敏告警 details；assets worker 可复检托管资源元数据、执行内置安全扫描并自动下架异常资源；imports worker 可执行大批量导入；public-banks worker 可自动同步公共题库采纳副本；exports worker 可渲染 PDF/Word 导出文件和每日一练 ZIP 图片素材包。
+- `apps/worker` 后台任务进程：CRM webhook 队列消费、generic/钉钉/飞书/企微机器人发送、签名、失败重试和日志；commerce worker 可补偿查询微信/支付宝支付和退款状态；provider-bills worker 可下载微信/支付宝官方账单并导入资金对账；platform-billing worker 可自动为即将到期且未开票的 SaaS 订阅生成服务费账单并写审计；platform-dunning worker 可扫描逾期未结清服务费账单、标记 overdue、写内部催缴记录和审计；platform-audit-alerts worker 可把高风险平台审计动作转换为内部告警并递归脱敏告警 details；platform-audit-notifications worker 可把开放审计告警按平台渠道推送到 generic/钉钉/飞书/企微 webhook，并记录幂等发送事件；assets worker 可复检托管资源元数据、执行内置安全扫描并自动下架异常资源；imports worker 可执行大批量导入；public-banks worker 可自动同步公共题库采纳副本；exports worker 可渲染 PDF/Word 导出文件和每日一练 ZIP 图片素材包。
 - 销售/代理分佣结算基础闭环：租户默认比例、成员比例、激活码批次比例、订单/激活码归因、结算单生成、审核、线下打款状态、CSV/JSON 导出、打款凭证登记/复核和权限隔离。
 - 订单售后基础闭环：退款请求、审核、处理状态流、微信/支付宝发起退款、微信/支付宝退款查询确认、微信/支付宝退款通知 webhook、退款金额累计、部分/全额退款订单状态、全额退款权益撤销、退款事件和审计日志。
 - 资金对账、异常订单和财务凭证闭环：租户财务/运营可通过 `/api/commerce/reconciliation/*` 导入或预览支付/退款账单行，也可创建微信/支付宝官方账单下载任务；后端按租户隔离比对本地订单、支付、退款记录，识别已匹配、金额不一致、状态不一致、供应商有本地无、本地有供应商无、重复行和无效行，并写入对账批次、明细和审计日志；异常明细可创建差错工单，支持分配、开始处理、升级、解决、忽略、重开和事件留痕；`/api/commerce/operations/anomalies` 聚合异常订单风险，`/api/commerce/adjustment-vouchers*` 支持人工调整凭证、复核、事件轨迹和报表。工单和凭证只做财务审核闭环，不直接修改订单、支付、退款或权益。
@@ -35,7 +35,7 @@
 - 题库导出已完成服务端结构化 payload、PDF/Word 二进制 worker、每日一练基础导出和每日一练 ZIP 图片素材包；后续还要补更精细试卷模板、多模板排版和导出操作台体验。
 - 优惠券复杂规则和核销报表已可联调，包含状态启停、活动分组、最低订单金额、优惠封顶、单用户限次、首单限制、适用套餐/地区、核销明细和活动报表；Taro 租户营销中心已接优惠券规则表单、筛选、核销明细和报表第一版。
 - 勋章管理、手动发放、签到连续天数、积分阈值、反馈解决和积分活动任务自动发放已可联调；积分活动任务、积分兑换商品、兑换订单、优惠券兑换履约、租户后台配置和用户站内通知第一版已完成，Taro 学生个人中心已接积分任务/兑换/积分明细和消息中心第一版，租户营销中心已接积分任务/兑换操作台和用户通知查看第一版。后续还要补连续签到奖励规则、练习次数/单词掌握/模考成绩系统触发勋章、外部微信订阅消息/短信推送、积分风控报表、分佣真实打款 provider、发票、批量凭证上传、CRM 富卡片模板、失败告警、死信运营台、销售转化看板、公共题库版本通知和冲突处理操作台。
- `apps/taro` 已建立 Taro 4 React 跨端前端地基，包含 H5 学生端、租户后台、平台后台三套构建入口、租户解析、统一 API client 和 Supabase Auth client 初始化；学生端第一批页面已接入登录、首页、题库、练习、背单词、知识手册、分数线、AI 择校推荐、资料和个人中心，已新增 `RichContent` 安全渲染组件用于题干、选项、解析、知识手册和逐题复盘，H5 端已用 KaTeX 渲染 `$...$`、`$$...$$`、`\(...\)`、`\[...\]` 公式，私有题图可用 `asset:<uuid>`/`content_asset:<uuid>` 资源引用走短期预览签名，已升级背单词为今日计划/单元学习/收藏练习、卡片翻转、发音、美/英音切换和本地位置恢复第一版，资料页已补齐预览/下载的短签名、水印 traceId 和强制水印容器第一版，个人中心已接学习报告、14 天趋势、题型表现、最近练习、7 日答题榜当前排名、积分任务/兑换/积分明细和消息中心第一版；租户后台第一批页面已接入工作台、数据看板、学生/班级、题库内容、营销中心、财务运营和租户设置，营销中心已接 CRM、分佣结算、优惠券规则/核销报表、积分任务/兑换操作台和用户通知查看第一版，财务运营已接退款状态机、官方账单任务、对账异常、差错工单和调整凭证第一版，设置页已接主题模板、草稿预览/发布、角色模板和成员绑定第一版；平台后台已接入工作台、租户管理、账务中心、公共题库授权，以及创建租户、租户详情、状态变更、账务资料维护、平台审计查询/CSV 导出、开放审计告警确认/解决、订阅、订阅账单候选/dry-run/批量生成、自动计费 worker 生成结果查看、收款、逾期预览/催缴记录、用量和题库授权第一版写操作。
+- `apps/taro` 已建立 Taro 4 React 跨端前端地基，包含 H5 学生端、租户后台、平台后台三套构建入口、租户解析、统一 API client 和 Supabase Auth client 初始化；学生端第一批页面已接入登录、首页、题库、练习、背单词、知识手册、分数线、AI 择校推荐、资料和个人中心，已新增 `RichContent` 安全渲染组件用于题干、选项、解析、知识手册和逐题复盘，H5 端已用 KaTeX 渲染 `$...$`、`$$...$$`、`\(...\)`、`\[...\]` 公式，私有题图可用 `asset:<uuid>`/`content_asset:<uuid>` 资源引用走短期预览签名，已升级背单词为今日计划/单元学习/收藏练习、卡片翻转、发音、美/英音切换和本地位置恢复第一版，资料页已补齐预览/下载的短签名、水印 traceId 和强制水印容器第一版，个人中心已接学习报告、14 天趋势、题型表现、最近练习、7 日答题榜当前排名、积分任务/兑换/积分明细和消息中心第一版；租户后台第一批页面已接入工作台、数据看板、学生/班级、题库内容、营销中心、财务运营和租户设置，营销中心已接 CRM、分佣结算、优惠券规则/核销报表、积分任务/兑换操作台和用户通知查看第一版，财务运营已接退款状态机、官方账单任务、对账异常、差错工单和调整凭证第一版，设置页已接主题模板、草稿预览/发布、角色模板和成员绑定第一版；平台后台已接入工作台、租户管理、账务中心、公共题库授权，以及创建租户、租户详情、状态变更、账务资料维护、平台审计查询/CSV 导出、开放审计告警确认/解决、审计告警外部通知渠道/事件状态摘要、订阅、订阅账单候选/dry-run/批量生成、自动计费 worker 生成结果查看、收款、逾期预览/催缴记录、用量和题库授权第一版写操作。
 - 根目录已清理为新 Supabase SaaS monorepo 编排层；旧 PocketBase/React 项目和旧构建产物仅保留在 `参考/` 目录作为迁移参考，不进入 Git 提交。

 更完整的进度看这些文档：
@@ -63,7 +63,7 @@
 ```text
 apps/api/                   Node.js 业务 API
 apps/taro/                  Taro 4 React 跨端前端，H5 三入口，后续扩展小程序
-apps/worker/                后台异步任务：CRM webhook、支付/退款补偿、官方账单下载、平台审计告警、资源复检、导入执行、公共题库同步、题库导出渲染等
+apps/worker/                后台异步任务：CRM webhook、支付/退款补偿、官方账单下载、平台审计告警/外部通知、资源复检、导入执行、公共题库同步、题库导出渲染等
 packages/config/            共享配置
 packages/db/                PostgreSQL 连接池和查询封装
 packages/domain/            领域常量和共享类型
@@ -222,7 +222,7 @@ WORKER_PLATFORM_DUNNING_ID=platform-dunning-prod-1
 npm --workspace @tiku-saas/worker run platform-audit-alerts:once
 ```

-生产定时任务建议每 5 到 15 分钟运行一次 `node dist/apps/worker/src/index.js --once --job platform-audit-alerts`。它只扫描 `platform.%` 审计日志，把命中启用规则的高风险动作写入 `platform_audit_alerts`，不会发送外部通知；告警 details 会递归脱敏 token、secret、password、key、authorization、cookie、session、cert、signature 等敏感字段。
+生产定时任务建议每 5 到 15 分钟运行一次 `node dist/apps/worker/src/index.js --once --job platform-audit-alerts`。它只扫描 `platform.%` 审计日志，把命中启用规则的高风险动作写入 `platform_audit_alerts`；告警 details 会递归脱敏 token、secret、password、key、authorization、cookie、session、cert、signature 等敏感字段。

 ```text
 WORKER_PLATFORM_AUDIT_ALERT_BATCH_SIZE=200
@@ -230,6 +230,22 @@ WORKER_PLATFORM_AUDIT_ALERT_LOOKBACK_DAYS=14
 WORKER_PLATFORM_AUDIT_ALERT_ID=platform-audit-alerts-prod-1
 ```

+单次运行平台审计告警外部通知 worker：
+
+```bash
+npm --workspace @tiku-saas/worker run platform-audit-notifications:once
+```
+
+生产定时任务建议在 `platform-audit-alerts` 后每 5 到 15 分钟运行一次 `node dist/apps/worker/src/index.js --once --job platform-audit-notifications`。它会把开放告警按 `platform_audit_notification_channels` 配置入队到 `platform_audit_notification_events`，支持 generic、钉钉、飞书和企业微信 webhook，发送请求和事件台账都会递归脱敏敏感字段。钉钉/飞书签名密钥必须存入 `app_private.platform_secrets`，API 只返回 `secretRef` 和 webhook host/path。
+
+```text
+WORKER_PLATFORM_AUDIT_NOTIFICATION_BATCH_SIZE=50
+WORKER_PLATFORM_AUDIT_NOTIFICATION_MAX_ATTEMPTS=5
+WORKER_PLATFORM_AUDIT_NOTIFICATION_BACKOFF_SECONDS=10,60,300,900,1800
+WORKER_PLATFORM_AUDIT_NOTIFICATION_REQUEST_TIMEOUT_MS=10000
+WORKER_PLATFORM_AUDIT_NOTIFICATION_ALLOW_INSECURE_LOCALHOST=false
+```
+
 单次运行内容资源复检 worker：

 ```bash
@@ -304,6 +320,7 @@ npm run test:worker:commerce
 npm run test:worker:platform-billing
 npm run test:worker:platform-dunning
 npm run test:worker:platform-audit-alerts
+npm run test:worker:platform-audit-notifications
 npm run test:worker:assets
 npm run test:worker:exports
 npm run test:worker:imports
@@ -469,7 +486,7 @@ npm run audit:runtime
 git diff --check
 ```

-结果：通过。`npm run test:auth:remote-smoke` 覆盖远程 Auth/JWKS 验收脚本自身。`npm run test:rls` 覆盖 75 条运行时 RLS 断言，包含主租户、合作商租户、无租户 claim、平台管理员旁路和跨租户写入拒绝。`npm run test:api` 覆盖资源访问事件、锁定 CDN 资源拒绝、provider-managed CDN 显式放行、学生短 TTL 下载/预览、访问记录查询、安全扫描门禁、官方账单下载任务权限和脱敏响应、异常订单运营台、人工调整凭证提交/复核/事件/报表、平台账单逾期 dry-run/催缴记录、平台审计告警查询/状态更新/越权拒绝/敏感 details 脱敏、租户隔离，以及凭证审批不修改订单/支付/权益。`npm run test:worker:commerce` 覆盖支付/退款补偿、微信/支付宝官方账单下载、账单 hash 校验、导入 `provider_download` 对账批次和密钥不泄露。`npm run test:worker:platform-billing` 覆盖平台 SaaS 订阅自动计费、重复开票保护、账单明细和审计。`npm run test:worker:platform-dunning` 覆盖平台 SaaS 逾期账单标记、内部催缴记录、租户 `past_due` 状态和每日催缴幂等。`npm run test:worker:platform-audit-alerts` 覆盖平台审计告警生成、规则匹配、幂等、防重复和告警 details 脱敏。`npm run test:worker:assets` 覆盖托管资源复检、内置安全扫描、外部 HTTP scanner 通过/失败/不可用 fail-closed、扫描失败/跳过事件和异常资源自动下架。`npm run test:worker:exports` 覆盖导出 worker 生成可信资源并标记 `securityScanStatus=passed`。`npm run audit:runtime` 无 high/critical 漏洞；当前运行时依赖树仍有 `exceljs -> uuid` 的 moderate 级提示，修复需要破坏性降级 `exceljs`，后续应在导入 Excel 回归充分后单独处理。
+结果：通过。`npm run test:auth:remote-smoke` 覆盖远程 Auth/JWKS 验收脚本自身。`npm run test:rls` 覆盖 75 条运行时 RLS 断言，包含主租户、合作商租户、无租户 claim、平台管理员旁路和跨租户写入拒绝。`npm run test:api` 覆盖资源访问事件、锁定 CDN 资源拒绝、provider-managed CDN 显式放行、学生短 TTL 下载/预览、访问记录查询、安全扫描门禁、官方账单下载任务权限和脱敏响应、异常订单运营台、人工调整凭证提交/复核/事件/报表、平台账单逾期 dry-run/催缴记录、平台审计告警查询/状态更新/越权拒绝/敏感 details 脱敏、平台审计告警通知渠道/事件查询和密钥不回显、租户隔离，以及凭证审批不修改订单/支付/权益。`npm run test:worker:commerce` 覆盖支付/退款补偿、微信/支付宝官方账单下载、账单 hash 校验、导入 `provider_download` 对账批次和密钥不泄露。`npm run test:worker:platform-billing` 覆盖平台 SaaS 订阅自动计费、重复开票保护、账单明细和审计。`npm run test:worker:platform-dunning` 覆盖平台 SaaS 逾期账单标记、内部催缴记录、租户 `past_due` 状态和每日催缴幂等。`npm run test:worker:platform-audit-alerts` 覆盖平台审计告警生成、规则匹配、幂等、防重复和告警 details 脱敏。`npm run test:worker:platform-audit-notifications` 覆盖平台审计告警外部通知入队、generic webhook 发送、幂等、防重复、签名密钥不泄露和请求 payload 脱敏。`npm run test:worker:assets` 覆盖托管资源复检、内置安全扫描、外部 HTTP scanner 通过/失败/不可用 fail-closed、扫描失败/跳过事件和异常资源自动下架。`npm run test:worker:exports` 覆盖导出 worker 生成可信资源并标记 `securityScanStatus=passed`。`npm run audit:runtime` 无 high/critical 漏洞；当前运行时依赖树仍有 `exceljs -> uuid` 的 moderate 级提示，修复需要破坏性降级 `exceljs`，后续应在导入 Excel 回归充分后单独处理。

 注意：`apps/taro` 是静态构建工程，线上发布 `apps/taro/dist/**`，不发布 `node_modules`。Taro 4.2.0 当前构建工具链仍会触发 `npm run audit:taro:toolchain` 的上游 high/critical 提示，不能用 `npm audit fix --force` 降级到 Taro 3 破坏构建；上线验收时以 `audit:runtime`、构建产物、前端密钥检查和静态服务器配置为准，并持续跟进 Taro 官方修复。

@@ -478,7 +495,7 @@ git diff --check
 优先继续补：

 1. 真实云端 Auth/JWKS 回归、RLS 深测和生产环境配置验收。
-2. 继续补 Taro 前端：学生端小程序公式真机验收、题图资源后台字段化、独立消息中心增强、背单词更细统计、小程序支付与分享，租户后台更细导入体验/数据范围 UI/主题素材库/财务复核细节，平台后台外部催缴通知、在线收款、审计报表增强、审计告警外部通知/升级策略和更细平台权限点，小程序兼容验证。
+2. 继续补 Taro 前端：学生端小程序公式真机验收、题图资源后台字段化、独立消息中心增强、背单词更细统计、小程序支付与分享，租户后台更细导入体验/数据范围 UI/主题素材库/财务复核细节，平台后台外部催缴通知、在线收款、审计报表增强、审计告警通知升级策略和更细平台权限点，小程序兼容验证。
 3. 对象存储真实 AV/内容安全扫描服务联调、CDN 防盗链、转码/CDN 级水印和生命周期策略。
 4. 题库导出模板精排、导出操作台、真实数据 dry-run、导入字段映射 UI 和复检结果操作台。
 5. 真实 OAuth/短信/支付生产账号联调、真实生产账单抽样验收、真实打款 provider、发票、公共题库版本通知/冲突处理操作台、积分活动风控和连续签到奖励深化，以及排行榜防刷/预聚合。
--- a/apps/api/src/features/platform-admin/index.ts
+++ b/apps/api/src/features/platform-admin/index.ts
@@ -9,6 +9,8 @@ import {
  invoiceRemindersRoute,
  platformAuditAlertRulesRoute,
  platformAuditAlertsRoute,
+  platformAuditNotificationChannelsRoute,
+  platformAuditNotificationEventsRoute,
  platformAuditLogsExportRoute,
  platformAuditLogsRoute,
  platformOverviewRoute,
@@ -24,6 +26,7 @@ import {
  tenantUsageRoute,
  updatePlatformAuditAlertStatusRoute,
  updateTenantStatusRoute,
+  upsertPlatformAuditNotificationChannelRoute,
  upsertQuestionBankGrantRoute,
  upsertBillingProfileRoute,
 } from './routes.js';
@@ -44,6 +47,9 @@ export const platformAdminRoutes: RouteDefinition[] = [
  ['GET', '/api/platform-admin/audit-alert-rules', platformAuditAlertRulesRoute],
  ['GET', '/api/platform-admin/audit-alerts', platformAuditAlertsRoute],
  ['POST', '/api/platform-admin/audit-alerts/status', updatePlatformAuditAlertStatusRoute],
+  ['GET', '/api/platform-admin/audit-notification-channels', platformAuditNotificationChannelsRoute],
+  ['PUT', '/api/platform-admin/audit-notification-channels', upsertPlatformAuditNotificationChannelRoute],
+  ['GET', '/api/platform-admin/audit-notification-events', platformAuditNotificationEventsRoute],
  ['POST', '/api/platform-admin/subscriptions', createSubscriptionRoute],
  ['GET', '/api/platform-admin/invoices', tenantInvoicesRoute],
  ['POST', '/api/platform-admin/invoices', createInvoiceRoute],
--- a/apps/api/src/features/platform-admin/routes.ts
+++ b/apps/api/src/features/platform-admin/routes.ts
@@ -41,9 +41,20 @@ function optionalUuidArray(body: Record<string, unknown>, key: string) {
  return optionalStringArray(body, key).filter(Boolean);
 }

+function objectValue(value: unknown): Record<string, unknown> {
+  return value && typeof value === 'object' && !Array.isArray(value) ? value as Record<string, unknown> : {};
+}
+
+function truncate(value: unknown, max = 1900) {
+  return String(value ?? '').slice(0, max);
+}
+
 const UUID_RE = /^[0-9a-f]{8}-[0-9a-f]{4}-[1-5][0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i;
 const TENANT_INVOICE_STATUSES = new Set(['draft', 'issued', 'paid', 'void', 'overdue']);
 const PLATFORM_AUDIT_ALERT_STATUSES = new Set(['open', 'acknowledged', 'resolved', 'ignored']);
+const PLATFORM_AUDIT_NOTIFICATION_EVENT_STATUSES = new Set(['pending', 'processing', 'sent', 'retrying', 'failed', 'discarded']);
+const PLATFORM_AUDIT_NOTIFICATION_PROVIDERS = new Set(['generic', 'dingtalk', 'feishu', 'wecom']);
+const PLATFORM_AUDIT_SEVERITIES = new Set(['low', 'medium', 'high', 'critical']);

 function csvEscape(value: unknown) {
  if (value === null || value === undefined) return '';
@@ -119,6 +130,98 @@ function auditAlertStatusFrom(value: string) {
  return status;
 }

+function platformAuditNotificationProviderFrom(value: string) {
+  const provider = value || 'generic';
+  if (!PLATFORM_AUDIT_NOTIFICATION_PROVIDERS.has(provider)) {
+    throw new HttpError(400, 'provider is invalid', 'INVALID_NOTIFICATION_PROVIDER');
+  }
+  return provider;
+}
+
+function platformAuditSeverityFrom(value: string, fallback = 'medium') {
+  const severity = value || fallback;
+  if (!PLATFORM_AUDIT_SEVERITIES.has(severity)) {
+    throw new HttpError(400, 'severity is invalid', 'INVALID_ALERT_SEVERITY');
+  }
+  return severity;
+}
+
+function platformAuditNotificationStatusFilter(value: unknown) {
+  const statuses = Array.isArray(value)
+    ? value.map(item => String(item).trim()).filter(Boolean)
+    : ['open'];
+  if (statuses.length === 0 || statuses.length > 4) {
+    throw new HttpError(400, 'statusFilter is invalid', 'INVALID_STATUS_FILTER');
+  }
+  for (const status of statuses) {
+    if (!PLATFORM_AUDIT_ALERT_STATUSES.has(status)) {
+      throw new HttpError(400, 'statusFilter contains invalid status', 'INVALID_STATUS_FILTER');
+    }
+  }
+  return [...new Set(statuses)];
+}
+
+function platformAuditNotificationChannelCode(value: string) {
+  const code = normalizeSlug(value).replace(/-/g, '_');
+  if (!/^[a-z0-9_]{3,64}$/.test(code)) {
+    throw new HttpError(400, 'channelCode is invalid', 'INVALID_CHANNEL_CODE');
+  }
+  return code;
+}
+
+function platformSecretRef(scope: string, key: string) {
+  return `app_private.platform_secrets:${scope}:${key}`;
+}
+
+function parsePlatformSecretRef(ref: string | null) {
+  if (!ref) return null;
+  const parts = ref.split(':');
+  if (parts.length !== 3 || parts[0] !== 'app_private.platform_secrets') return null;
+  return { scope: parts[1], key: parts[2] };
+}
+
+function safeWebhookInfo(rawUrl: string) {
+  try {
+    const url = new URL(rawUrl);
+    return {
+      protocol: url.protocol.replace(':', ''),
+      host: url.host,
+      pathname: url.pathname,
+    };
+  } catch {
+    return { protocol: '', host: '', pathname: '' };
+  }
+}
+
+function validatePlatformWebhookUrl(rawUrl: string) {
+  let url: URL;
+  try {
+    url = new URL(rawUrl);
+  } catch {
+    throw new HttpError(400, 'webhookUrl is invalid', 'INVALID_WEBHOOK_URL');
+  }
+  if (url.protocol !== 'https:' && !['localhost', '127.0.0.1', '::1'].includes(url.hostname)) {
+    throw new HttpError(400, 'webhookUrl must use HTTPS outside local development', 'INVALID_WEBHOOK_URL');
+  }
+  url.username = '';
+  url.password = '';
+  return url.toString();
+}
+
+function numberBetween(value: unknown, fallback: number, min: number, max: number) {
+  const parsed = Number(value ?? fallback);
+  if (!Number.isFinite(parsed)) return fallback;
+  return Math.min(Math.max(Math.trunc(parsed), min), max);
+}
+
+function channelResponse<T extends Record<string, unknown>>(item: T) {
+  return {
+    ...item,
+    webhookUrl: undefined,
+    webhook: safeWebhookInfo(String(item.webhookUrl || '')),
+  };
+}
+
 interface PlatformAuditAlertRow {
  id: string;
  tenantId: string | null;
@@ -991,6 +1094,208 @@ export async function updatePlatformAuditAlertStatusRoute(ctx: RequestContext) {
  };
 }

+export async function platformAuditNotificationChannelsRoute(ctx: RequestContext) {
+  await requirePlatformAdmin(ctx);
+
+  const enabled = listQuery(ctx, 'enabled');
+  const provider = listQuery(ctx, 'provider');
+  const limit = intParam(ctx, 'limit', 100, 500);
+  if (enabled && !['true', 'false'].includes(enabled)) {
+    throw new HttpError(400, 'enabled must be true or false', 'INVALID_BOOLEAN');
+  }
+  if (provider && !PLATFORM_AUDIT_NOTIFICATION_PROVIDERS.has(provider)) {
+    throw new HttpError(400, 'provider is invalid', 'INVALID_NOTIFICATION_PROVIDER');
+  }
+
+  const items = await query<Record<string, unknown>>(
+    `
+    select id, channel_code as "channelCode", name, description, enabled,
+           provider, webhook_url as "webhookUrl", secret_ref as "secretRef",
+           min_severity as "minSeverity", status_filter as "statusFilter",
+           action_patterns as "actionPatterns", tenant_ids as "tenantIds",
+           timeout_sec as "timeoutSec", metadata,
+           created_at as "createdAt", updated_at as "updatedAt"
+    from public.platform_audit_notification_channels
+    where ($1::text = '' or enabled = ($1 = 'true'))
+      and ($2::text = '' or provider = $2)
+    order by enabled desc,
+             case min_severity when 'critical' then 1 when 'high' then 2 when 'medium' then 3 else 4 end,
+             channel_code asc
+    limit $3
+    `,
+    [enabled, provider, limit],
+  );
+
+  return { items: items.map(channelResponse) };
+}
+
+export async function upsertPlatformAuditNotificationChannelRoute(ctx: RequestContext) {
+  await requirePlatformAdmin(ctx);
+
+  const body = await readJsonBody(ctx);
+  const channelCode = platformAuditNotificationChannelCode(requiredString(body, 'channelCode'));
+  const name = requiredString(body, 'name');
+  const provider = platformAuditNotificationProviderFrom(optionalString(body, 'provider'));
+  const webhookUrl = validatePlatformWebhookUrl(requiredString(body, 'webhookUrl'));
+  const statusFilter = platformAuditNotificationStatusFilter(body.statusFilter);
+  const actionPatterns = optionalStringArray(body, 'actionPatterns').slice(0, 50);
+  const tenantIds = optionalUuidList(body.tenantIds, 'tenantIds', 200);
+  const minSeverity = platformAuditSeverityFrom(optionalString(body, 'minSeverity'), 'medium');
+  const timeoutSec = numberBetween(body.timeoutSec, 10, 1, 60);
+  const description = optionalString(body, 'description') || null;
+  const metadata = objectValue(body.metadata);
+  let secretRef = optionalString(body, 'secretRef') || null;
+  const secret = typeof body.secret === 'string' && body.secret.trim() ? body.secret.trim() : '';
+  if (secret) secretRef = platformSecretRef('webhook', channelCode);
+  if (secretRef && !parsePlatformSecretRef(secretRef)) {
+    throw new HttpError(400, 'secretRef is invalid', 'INVALID_SECRET_REF');
+  }
+
+  const item = await transaction(async client => {
+    if (secret) {
+      await client.query(
+        `
+        insert into app_private.platform_secrets (
+          secret_scope, secret_key, secret_value, provider, last_rotated_at
+        )
+        values ('webhook', $1, $2, $3, now())
+        on conflict (secret_scope, secret_key)
+        do update set secret_value = excluded.secret_value,
+                      provider = excluded.provider,
+                      last_rotated_at = now(),
+                      updated_at = now()
+        `,
+        [channelCode, secret, provider],
+      );
+    }
+
+    const result = await client.query<Record<string, unknown>>(
+      `
+      insert into public.platform_audit_notification_channels (
+        channel_code, name, description, enabled, provider, webhook_url,
+        secret_ref, min_severity, status_filter, action_patterns,
+        tenant_ids, timeout_sec, metadata
+      )
+      values (
+        $1, $2, $3, $4, $5, $6,
+        $7, $8, $9::text[], $10::text[],
+        $11::uuid[], $12, $13::jsonb
+      )
+      on conflict (channel_code)
+      do update set name = excluded.name,
+                    description = excluded.description,
+                    enabled = excluded.enabled,
+                    provider = excluded.provider,
+                    webhook_url = excluded.webhook_url,
+                    secret_ref = excluded.secret_ref,
+                    min_severity = excluded.min_severity,
+                    status_filter = excluded.status_filter,
+                    action_patterns = excluded.action_patterns,
+                    tenant_ids = excluded.tenant_ids,
+                    timeout_sec = excluded.timeout_sec,
+                    metadata = excluded.metadata,
+                    updated_at = now()
+      returning id, channel_code as "channelCode", name, description, enabled,
+                provider, webhook_url as "webhookUrl", secret_ref as "secretRef",
+                min_severity as "minSeverity", status_filter as "statusFilter",
+                action_patterns as "actionPatterns", tenant_ids as "tenantIds",
+                timeout_sec as "timeoutSec", metadata,
+                created_at as "createdAt", updated_at as "updatedAt"
+      `,
+      [
+        channelCode,
+        name,
+        description,
+        body.enabled !== false,
+        provider,
+        webhookUrl,
+        secretRef,
+        minSeverity,
+        statusFilter,
+        actionPatterns,
+        tenantIds,
+        timeoutSec,
+        JSON.stringify(metadata),
+      ],
+    );
+    const saved = result.rows[0];
+    await recordPlatformAudit(client, ctx, 'platform.audit.notification_channel_upserted', 'platform_audit_notification_channel', String(saved.id), {
+      channelCode,
+      provider,
+      enabled: body.enabled !== false,
+      minSeverity,
+      statusFilter,
+      actionPatternCount: actionPatterns.length,
+      tenantIdCount: tenantIds.length,
+      secretRefSet: Boolean(secretRef),
+      secretRotated: Boolean(secret),
+      webhook: safeWebhookInfo(webhookUrl),
+    });
+    return saved;
+  });
+
+  return { item: channelResponse(item) };
+}
+
+export async function platformAuditNotificationEventsRoute(ctx: RequestContext) {
+  await requirePlatformAdmin(ctx);
+
+  const channelId = listQuery(ctx, 'channelId');
+  const alertId = listQuery(ctx, 'alertId');
+  const status = listQuery(ctx, 'status');
+  const provider = listQuery(ctx, 'provider');
+  const limit = intParam(ctx, 'limit', 100, 500);
+  if (channelId && !UUID_RE.test(channelId)) throw new HttpError(400, 'channelId is invalid', 'INVALID_UUID');
+  if (alertId && !UUID_RE.test(alertId)) throw new HttpError(400, 'alertId is invalid', 'INVALID_UUID');
+  if (status && !PLATFORM_AUDIT_NOTIFICATION_EVENT_STATUSES.has(status)) {
+    throw new HttpError(400, 'status is invalid', 'INVALID_NOTIFICATION_EVENT_STATUS');
+  }
+  if (provider && !PLATFORM_AUDIT_NOTIFICATION_PROVIDERS.has(provider)) {
+    throw new HttpError(400, 'provider is invalid', 'INVALID_NOTIFICATION_PROVIDER');
+  }
+
+  const items = await query<Record<string, unknown>>(
+    `
+    select e.id, e.channel_id as "channelId", c.channel_code as "channelCode",
+           c.name as "channelName", e.alert_id as "alertId",
+           e.audit_log_id as "auditLogId", e.provider, e.status, e.attempts,
+           e.scheduled_at as "scheduledAt", e.next_attempt_at as "nextAttemptAt",
+           e.last_attempt_at as "lastAttemptAt", e.sent_at as "sentAt",
+           e.last_error as "lastError", e.last_http_code as "lastHttpCode",
+           e.last_response_summary as "lastResponseSummary",
+           e.request_payload as "requestPayload", e.metadata,
+           a.tenant_id as "tenantId", t.slug::text as "tenantSlug",
+           t.name as "tenantName", a.severity as "alertSeverity",
+           a.status as "alertStatus", a.title as "alertTitle",
+           a.action as "alertAction", a.target_type as "targetType",
+           a.target_id as "targetId",
+           e.created_at as "createdAt", e.updated_at as "updatedAt"
+    from public.platform_audit_notification_events e
+    join public.platform_audit_notification_channels c on c.id = e.channel_id
+    join public.platform_audit_alerts a on a.id = e.alert_id
+    left join public.tenants t on t.id = a.tenant_id
+    where ($1::uuid is null or e.channel_id = $1::uuid)
+      and ($2::uuid is null or e.alert_id = $2::uuid)
+      and ($3::text = '' or e.status = $3)
+      and ($4::text = '' or e.provider = $4)
+    order by
+      case e.status when 'pending' then 1 when 'retrying' then 2 when 'processing' then 3 when 'failed' then 4 else 5 end,
+      e.created_at desc
+    limit $5
+    `,
+    [channelId || null, alertId || null, status, provider, limit],
+  );
+
+  return {
+    items: items.map(item => ({
+      ...item,
+      requestPayload: redactAuditAlertValue(item.requestPayload),
+      lastError: truncate(item.lastError),
+      lastResponseSummary: truncate(item.lastResponseSummary),
+    })),
+  };
+}
+
 export async function createTenantRoute(ctx: RequestContext) {
  await requirePlatformAdmin(ctx);

--- a/apps/taro/src/pages/platform-admin/workbench/index.tsx
+++ b/apps/taro/src/pages/platform-admin/workbench/index.tsx
@@ -5,6 +5,8 @@ import {
  exportPlatformAuditLogs,
  loadPlatformAuditAlerts,
  loadPlatformAuditLogs,
+  loadPlatformAuditNotificationChannels,
+  loadPlatformAuditNotificationEvents,
  loadPlatformInvoices,
  loadPlatformOverview,
  loadPlatformQuestionBankGrants,
@@ -13,6 +15,8 @@ import {
  updatePlatformAuditAlertStatus,
  type PlatformAuditAlertItem,
  type PlatformAuditLogItem,
+  type PlatformAuditNotificationChannelItem,
+  type PlatformAuditNotificationEventItem,
  type PlatformInvoiceItem,
  type PlatformOverview,
  type PlatformQuestionBankGrant,
@@ -42,6 +46,8 @@ export default function PlatformWorkbenchPage() {
  const [invoices, setInvoices] = useState<PlatformInvoiceItem[]>([]);
  const [auditLogs, setAuditLogs] = useState<PlatformAuditLogItem[]>([]);
  const [auditAlerts, setAuditAlerts] = useState<PlatformAuditAlertItem[]>([]);
+  const [auditNotificationChannels, setAuditNotificationChannels] = useState<PlatformAuditNotificationChannelItem[]>([]);
+  const [auditNotificationEvents, setAuditNotificationEvents] = useState<PlatformAuditNotificationEventItem[]>([]);
  const [banks, setBanks] = useState<PlatformQuestionBankItem[]>([]);
  const [grants, setGrants] = useState<PlatformQuestionBankGrant[]>([]);
  const [error, setError] = useState('');
@@ -56,7 +62,9 @@ export default function PlatformWorkbenchPage() {
      loadPlatformQuestionBankGrants({ limit: 6 }).catch(() => ({ items: [] })),
      loadPlatformAuditLogs({ limit: 6 }).catch(() => ({ items: [] })),
      loadPlatformAuditAlerts({ status: 'open', limit: 6 }).catch(() => ({ items: [] })),
-    ]).then(([overviewPayload, tenantPayload, invoicePayload, bankPayload, grantPayload, auditPayload, alertPayload]) => {
+      loadPlatformAuditNotificationChannels({ enabled: true, limit: 6 }).catch(() => ({ items: [] })),
+      loadPlatformAuditNotificationEvents({ limit: 6 }).catch(() => ({ items: [] })),
+    ]).then(([overviewPayload, tenantPayload, invoicePayload, bankPayload, grantPayload, auditPayload, alertPayload, channelPayload, eventPayload]) => {
      setOverview(overviewPayload.item || null);
      setTenants(tenantPayload.items || []);
      setInvoices(invoicePayload.items || []);
@@ -64,6 +72,8 @@ export default function PlatformWorkbenchPage() {
      setGrants(grantPayload.items || []);
      setAuditLogs(auditPayload.items || []);
      setAuditAlerts(alertPayload.items || []);
+      setAuditNotificationChannels(channelPayload.items || []);
+      setAuditNotificationEvents(eventPayload.items || []);
    }).catch(nextError => setError(nextError instanceof Error ? nextError.message : '平台后台加载失败'));
  }, []);

@@ -196,6 +206,30 @@ export default function PlatformWorkbenchPage() {
          </View>
          {!auditAlerts.length ? <View className='platform-empty'>暂无开放审计告警。</View> : null}
        </View>
+        <View className='platform-section'>
+          <Text className='platform-section-title'>告警外部通知</Text>
+          <View className='platform-grid'>
+            <View className='platform-metric'><Text className='platform-metric-label'>启用渠道</Text><Text className='platform-metric-value'>{String(auditNotificationChannels.length)}</Text></View>
+            <View className='platform-metric'><Text className='platform-metric-label'>最近事件</Text><Text className='platform-metric-value'>{String(auditNotificationEvents.length)}</Text></View>
+            <View className='platform-metric'><Text className='platform-metric-label'>失败事件</Text><Text className='platform-metric-value'>{String(auditNotificationEvents.filter(item => item.status === 'failed').length)}</Text></View>
+            <View className='platform-metric'><Text className='platform-metric-label'>待重试</Text><Text className='platform-metric-value'>{String(auditNotificationEvents.filter(item => item.status === 'retrying').length)}</Text></View>
+          </View>
+          <View className='platform-list'>
+            {auditNotificationChannels.map(item => (
+              <View className='platform-row' key={item.id}>
+                <Text className='platform-row-main'>{item.name || item.channelCode || '-'}</Text>
+                <Text className='platform-row-meta'>{item.provider || '-'} · {item.minSeverity || '-'} · {item.webhook?.host || '-'} · {item.statusFilter?.join('/') || '-'}</Text>
+              </View>
+            ))}
+            {auditNotificationEvents.map(item => (
+              <View className='platform-row' key={item.id}>
+                <Text className='platform-row-main'>{item.alertTitle || item.alertAction || '-'}</Text>
+                <Text className='platform-row-meta'>{item.channelName || item.channelCode || '-'} · {item.status || '-'} · HTTP {String(item.lastHttpCode || '-')} · {item.tenantName || item.tenantSlug || '平台'}</Text>
+              </View>
+            ))}
+          </View>
+          {!auditNotificationChannels.length && !auditNotificationEvents.length ? <View className='platform-empty'>暂无外部通知渠道或发送事件。</View> : null}
+        </View>
        {error ? <Text className='platform-error'>{error}</Text> : null}
      </View>
    </View>
--- a/apps/taro/src/services/platformAdmin.ts
+++ b/apps/taro/src/services/platformAdmin.ts
@@ -281,6 +281,53 @@ export interface PlatformAuditAlertItem {
  updatedAt?: string | null;
 }

+export interface PlatformAuditNotificationChannelItem {
+  id: string;
+  channelCode?: string | null;
+  name?: string | null;
+  description?: string | null;
+  enabled?: boolean | null;
+  provider?: string | null;
+  secretRef?: string | null;
+  minSeverity?: string | null;
+  statusFilter?: string[] | null;
+  actionPatterns?: string[] | null;
+  tenantIds?: string[] | null;
+  timeoutSec?: number | string | null;
+  webhook?: {
+    protocol?: string | null;
+    host?: string | null;
+    pathname?: string | null;
+  } | null;
+  metadata?: Record<string, unknown> | null;
+  createdAt?: string | null;
+  updatedAt?: string | null;
+}
+
+export interface PlatformAuditNotificationEventItem {
+  id: string;
+  channelId?: string | null;
+  channelCode?: string | null;
+  channelName?: string | null;
+  alertId?: string | null;
+  auditLogId?: string | null;
+  provider?: string | null;
+  status?: string | null;
+  attempts?: number | string | null;
+  lastHttpCode?: number | string | null;
+  lastError?: string | null;
+  lastResponseSummary?: string | null;
+  alertSeverity?: string | null;
+  alertStatus?: string | null;
+  alertTitle?: string | null;
+  alertAction?: string | null;
+  tenantName?: string | null;
+  tenantSlug?: string | null;
+  sentAt?: string | null;
+  createdAt?: string | null;
+  updatedAt?: string | null;
+}
+
 export interface CreatePlatformTenantInput {
  slug: string;
  name: string;
@@ -450,6 +497,30 @@ export async function updatePlatformAuditAlertStatus(input: {
  });
 }

+export async function loadPlatformAuditNotificationChannels(query: {
+  enabled?: boolean;
+  provider?: string;
+  limit?: number;
+} = {}) {
+  return apiRequest<{ items?: PlatformAuditNotificationChannelItem[] }>('/api/platform-admin/audit-notification-channels', {
+    query: { ...query, limit: query.limit || 50 },
+    tenantId: null,
+  });
+}
+
+export async function loadPlatformAuditNotificationEvents(query: {
+  channelId?: string;
+  alertId?: string;
+  status?: string;
+  provider?: string;
+  limit?: number;
+} = {}) {
+  return apiRequest<{ items?: PlatformAuditNotificationEventItem[] }>('/api/platform-admin/audit-notification-events', {
+    query: { ...query, limit: query.limit || 50 },
+    tenantId: null,
+  });
+}
+
 export async function loadPlatformInvoices(query: { tenantId?: string; status?: string; limit?: number } = {}) {
  return apiRequest<{ items?: PlatformInvoiceItem[] }>('/api/platform-admin/invoices', {
    query: { ...query, limit: query.limit || 80 },
--- a/apps/worker/package.json
+++ b/apps/worker/package.json
@@ -14,6 +14,7 @@
    "platform-billing:once": "tsx src/index.ts --once --job platform-billing",
    "platform-dunning:once": "tsx src/index.ts --once --job platform-dunning",
    "platform-audit-alerts:once": "tsx src/index.ts --once --job platform-audit-alerts",
+    "platform-audit-notifications:once": "tsx src/index.ts --once --job platform-audit-notifications",
    "assets:once": "tsx src/index.ts --once --job assets",
    "imports:once": "tsx src/index.ts --once --job imports",
    "public-banks:once": "tsx src/index.ts --once --job public-banks",
--- a/apps/worker/src/config.ts
+++ b/apps/worker/src/config.ts
@@ -27,6 +27,11 @@ export interface WorkerConfig {
  platformAuditAlertBatchSize: number;
  platformAuditAlertWorkerId: string;
  platformAuditAlertLookbackDays: number;
+  platformAuditNotificationBatchSize: number;
+  platformAuditNotificationMaxAttempts: number;
+  platformAuditNotificationBackoffSeconds: number[];
+  platformAuditNotificationRequestTimeoutMs: number;
+  platformAuditNotificationAllowInsecureLocalhost: boolean;
  assetBatchSize: number;
  assetMinAgeSeconds: number;
  assetRecheckIntervalSeconds: number;
@@ -111,6 +116,9 @@ function validateProductionConfig(nextConfig: WorkerConfig) {
  if (nextConfig.assetSecurityScanFailOpen) {
    failures.push('WORKER_ASSET_SECURITY_SCAN_FAIL_OPEN=true is not allowed in production workers');
  }
+  if (nextConfig.platformAuditNotificationAllowInsecureLocalhost) {
+    failures.push('WORKER_PLATFORM_AUDIT_NOTIFICATION_ALLOW_INSECURE_LOCALHOST=true is not allowed in production workers');
+  }
  const scannerModes = nextConfig.assetSecurityScanner
    .split(',')
    .map(item => item.trim().toLowerCase())
@@ -184,6 +192,13 @@ const loadedConfig: WorkerConfig = {
  platformAuditAlertBatchSize: envNumber('WORKER_PLATFORM_AUDIT_ALERT_BATCH_SIZE', 200),
  platformAuditAlertWorkerId: envString('WORKER_PLATFORM_AUDIT_ALERT_ID', `platform-audit-alerts-${process.pid}`),
  platformAuditAlertLookbackDays: envNumber('WORKER_PLATFORM_AUDIT_ALERT_LOOKBACK_DAYS', 14),
+  platformAuditNotificationBatchSize: envNumber('WORKER_PLATFORM_AUDIT_NOTIFICATION_BATCH_SIZE', 50),
+  platformAuditNotificationMaxAttempts: envNumber('WORKER_PLATFORM_AUDIT_NOTIFICATION_MAX_ATTEMPTS', 5),
+  platformAuditNotificationBackoffSeconds: envList('WORKER_PLATFORM_AUDIT_NOTIFICATION_BACKOFF_SECONDS', '10,60,300,900,1800')
+    .map((value: string) => Number(value))
+    .filter((value: number) => Number.isFinite(value) && value > 0),
+  platformAuditNotificationRequestTimeoutMs: envNumber('WORKER_PLATFORM_AUDIT_NOTIFICATION_REQUEST_TIMEOUT_MS', 10_000),
+  platformAuditNotificationAllowInsecureLocalhost: envBoolean('WORKER_PLATFORM_AUDIT_NOTIFICATION_ALLOW_INSECURE_LOCALHOST', false),
  assetBatchSize: envNumber('WORKER_ASSET_BATCH_SIZE', 50),
  assetMinAgeSeconds: envNumber('WORKER_ASSET_MIN_AGE_SECONDS', 300),
  assetRecheckIntervalSeconds: envNumber('WORKER_ASSET_RECHECK_INTERVAL_SECONDS', 60 * 60 * 24),
--- a/apps/worker/src/index.ts
+++ b/apps/worker/src/index.ts
@@ -70,6 +70,16 @@ async function runOnce() {
    );
    return;
  }
+  if (job === 'platform-audit-notifications') {
+    const { processPlatformAuditNotificationBatch } = await import('./jobs/platform-audit-notifications.js');
+    const result = await processPlatformAuditNotificationBatch();
+    console.log(
+      `[worker] platform-audit-notifications batch enqueued=${result.enqueued}`
+        + ` processed=${result.processed} sent=${result.sent} failed=${result.failed}`
+        + ` retrying=${result.retrying} discarded=${result.discarded}`,
+    );
+    return;
+  }
  if (job === 'assets') {
    const result = await processAssetBatch();
    console.log(
--- a/apps/worker/src/jobs/platform-audit-notifications.ts
+++ b/apps/worker/src/jobs/platform-audit-notifications.ts
@@ -0,0 +1,612 @@
+import crypto from 'node:crypto';
+import type pg from 'pg';
+import { pool } from '../db.js';
+import { config } from '../config.js';
+
+const PROVIDERS = ['generic', 'dingtalk', 'feishu', 'wecom'] as const;
+type NotificationProvider = typeof PROVIDERS[number];
+
+interface NotificationChannelRow {
+  id: string;
+  channelCode: string;
+  name: string;
+  provider: NotificationProvider;
+  webhookUrl: string;
+  secretRef: string | null;
+  minSeverity: string;
+  statusFilter: string[];
+  actionPatterns: string[];
+  tenantIds: string[];
+  timeoutSec: number | null;
+}
+
+interface NotificationEventRow {
+  id: string;
+  channelId: string;
+  channelCode: string;
+  channelName: string;
+  alertId: string;
+  auditLogId: string | null;
+  provider: NotificationProvider;
+  attempts: number;
+  webhookUrl: string;
+  secretRef: string | null;
+  timeoutSec: number | null;
+  tenantId: string | null;
+  tenantSlug: string | null;
+  tenantName: string | null;
+  severity: string;
+  alertStatus: string;
+  action: string;
+  targetType: string | null;
+  targetId: string | null;
+  title: string;
+  summary: string | null;
+  details: Record<string, unknown> | null;
+  alertCreatedAt: string;
+}
+
+interface SecretRow {
+  secretValue: string | null;
+  secretJson: Record<string, unknown> | null;
+}
+
+interface PreparedRequest {
+  provider: NotificationProvider;
+  url: string;
+  body: Record<string, unknown>;
+  headers: Record<string, string>;
+}
+
+interface SendResult {
+  ok: boolean;
+  httpCode: number;
+  responseSummary: string;
+  errorMessage: string;
+}
+
+interface ProcessResult {
+  enqueued: number;
+  processed: number;
+  sent: number;
+  failed: number;
+  retrying: number;
+  discarded: number;
+}
+
+function objectValue(value: unknown): Record<string, unknown> {
+  return value && typeof value === 'object' && !Array.isArray(value) ? value as Record<string, unknown> : {};
+}
+
+function stringValue(value: unknown, fallback = '') {
+  return typeof value === 'string' && value.trim() ? value.trim() : fallback;
+}
+
+function truncate(value: unknown, max = 1900) {
+  return String(value ?? '').slice(0, max);
+}
+
+function severityRank(value: string) {
+  if (value === 'critical') return 4;
+  if (value === 'high') return 3;
+  if (value === 'medium') return 2;
+  return 1;
+}
+
+function redactAuditNotificationValue(value: unknown, parentKey = '', depth = 0): unknown {
+  if (value === null || value === undefined) return value;
+  if (depth > 8) return '[REDACTED_DEPTH_LIMIT]';
+  if (
+    /(?:password|passwd|secret|token|credential|private[_-]?key|api[_-]?key|app[_-]?secret|authorization|cookie|session|cert|signature|nonce)$/i
+      .test(parentKey)
+  ) {
+    return '[REDACTED]';
+  }
+  if (Array.isArray(value)) return value.map(item => redactAuditNotificationValue(item, parentKey, depth + 1));
+  if (typeof value === 'object') {
+    const output: Record<string, unknown> = {};
+    for (const [key, item] of Object.entries(value as Record<string, unknown>)) {
+      output[key] = redactAuditNotificationValue(item, key, depth + 1);
+    }
+    return output;
+  }
+  return value;
+}
+
+function matchesPattern(value: string, patterns: string[]) {
+  if (!patterns.length) return true;
+  return patterns.some(pattern => (
+    value === pattern
+    || (pattern.endsWith('*') && value.startsWith(pattern.slice(0, -1)))
+  ));
+}
+
+function parseSecretRef(ref: string | null) {
+  if (!ref) return null;
+  const parts = ref.split(':');
+  if (parts.length !== 3 || parts[0] !== 'app_private.platform_secrets') return null;
+  return { scope: parts[1], key: parts[2] };
+}
+
+function secretText(secret: SecretRow | null, keys: string[]) {
+  if (!secret) return '';
+  if (secret.secretValue?.trim()) return secret.secretValue.trim();
+  const json = objectValue(secret.secretJson);
+  for (const key of keys) {
+    const value = json[key];
+    if (typeof value === 'string' && value.trim()) return value.trim();
+  }
+  return '';
+}
+
+function validateWebhookUrl(rawUrl: string) {
+  let url: URL;
+  try {
+    url = new URL(rawUrl);
+  } catch {
+    throw new Error('Platform audit notification webhook URL is invalid');
+  }
+  const isLocalhost = ['127.0.0.1', 'localhost', '::1'].includes(url.hostname);
+  if (url.protocol !== 'https:' && !(config.platformAuditNotificationAllowInsecureLocalhost && isLocalhost)) {
+    throw new Error('Platform audit notification webhook URL must use HTTPS outside local development');
+  }
+  url.username = '';
+  url.password = '';
+  return url;
+}
+
+function dingtalkSign(secret: string): Record<string, string> {
+  if (!secret) return {};
+  const timestamp = String(Date.now());
+  const sign = crypto
+    .createHmac('sha256', secret)
+    .update(`${timestamp}\n${secret}`)
+    .digest('base64');
+  return { timestamp, sign };
+}
+
+function feishuSign(secret: string): Record<string, string> {
+  if (!secret) return {};
+  const timestamp = String(Math.floor(Date.now() / 1000));
+  const sign = crypto
+    .createHmac('sha256', `${timestamp}\n${secret}`)
+    .update('')
+    .digest('base64');
+  return { timestamp, sign };
+}
+
+function appendQuery(url: URL, params: Record<string, string>) {
+  for (const [key, value] of Object.entries(params)) {
+    if (value) url.searchParams.set(key, value);
+  }
+  return url.toString();
+}
+
+function alertPayload(task: NotificationEventRow) {
+  return {
+    event: 'platform.audit.alert',
+    alert: {
+      id: task.alertId,
+      severity: task.severity,
+      status: task.alertStatus,
+      title: task.title,
+      summary: task.summary,
+      action: task.action,
+      targetType: task.targetType,
+      targetId: task.targetId,
+      createdAt: task.alertCreatedAt,
+      details: redactAuditNotificationValue(task.details || {}),
+    },
+    tenant: task.tenantId
+      ? {
+          id: task.tenantId,
+          slug: task.tenantSlug,
+          name: task.tenantName,
+        }
+      : null,
+    source: {
+      channelId: task.channelId,
+      channelCode: task.channelCode,
+      auditLogId: task.auditLogId,
+    },
+  };
+}
+
+function alertMarkdown(task: NotificationEventRow) {
+  const payload = alertPayload(task);
+  const tenant = payload.tenant;
+  return [
+    `### 平台审计告警：${task.title}`,
+    `- 级别：${task.severity}`,
+    `- 状态：${task.alertStatus}`,
+    `- 租户：${tenant?.name || tenant?.slug || '平台'}`,
+    `- 动作：${task.action}`,
+    `- 目标：${[task.targetType, task.targetId].filter(Boolean).join(':') || '无'}`,
+    `- 摘要：${task.summary || '无'}`,
+    `- 告警ID：${task.alertId}`,
+    `- 时间：${String(task.alertCreatedAt).slice(0, 19).replace('T', ' ')}`,
+  ].join('\n');
+}
+
+function prepareRequest(task: NotificationEventRow, secret: SecretRow | null): PreparedRequest {
+  const target = validateWebhookUrl(task.webhookUrl);
+  const provider = task.provider;
+  const secretValue = secretText(secret, ['secret', 'signSecret', 'webhookSecret']);
+  const headers = { 'content-type': 'application/json' };
+  const markdown = alertMarkdown(task);
+
+  if (provider === 'dingtalk') {
+    return {
+      provider,
+      url: appendQuery(target, dingtalkSign(secretValue)),
+      headers,
+      body: {
+        msgtype: 'markdown',
+        markdown: {
+          title: '平台审计告警',
+          text: markdown,
+        },
+      },
+    };
+  }
+
+  if (provider === 'feishu') {
+    return {
+      provider,
+      url: target.toString(),
+      headers,
+      body: {
+        msg_type: 'interactive',
+        ...feishuSign(secretValue),
+        card: {
+          config: { wide_screen_mode: true },
+          header: { title: { tag: 'plain_text', content: '平台审计告警' }, template: 'red' },
+          elements: [{ tag: 'markdown', content: markdown }],
+        },
+      },
+    };
+  }
+
+  if (provider === 'wecom') {
+    return {
+      provider,
+      url: target.toString(),
+      headers,
+      body: {
+        msgtype: 'markdown',
+        markdown: { content: markdown },
+      },
+    };
+  }
+
+  return {
+    provider,
+    url: target.toString(),
+    headers,
+    body: alertPayload(task),
+  };
+}
+
+async function loadEnabledChannels(client: pg.PoolClient) {
+  const result = await client.query<NotificationChannelRow>(
+    `
+    select id, channel_code as "channelCode", name, provider,
+           webhook_url as "webhookUrl", secret_ref as "secretRef",
+           min_severity as "minSeverity", status_filter as "statusFilter",
+           action_patterns as "actionPatterns", tenant_ids as "tenantIds",
+           timeout_sec as "timeoutSec"
+    from public.platform_audit_notification_channels
+    where enabled = true
+    order by created_at asc
+    `,
+  );
+  return result.rows;
+}
+
+async function loadOpenAlerts(client: pg.PoolClient, limit: number) {
+  const result = await client.query<{
+    id: string;
+    auditLogId: string;
+    tenantId: string | null;
+    severity: string;
+    status: string;
+    action: string;
+  }>(
+    `
+    select id, audit_log_id as "auditLogId", tenant_id as "tenantId",
+           severity, status, action
+    from public.platform_audit_alerts
+    where status in ('open', 'acknowledged')
+    order by
+      case severity when 'critical' then 1 when 'high' then 2 when 'medium' then 3 else 4 end,
+      created_at asc
+    limit $1
+    `,
+    [limit],
+  );
+  return result.rows;
+}
+
+async function enqueueNotificationEvents(client: pg.PoolClient, limit: number) {
+  const channels = await loadEnabledChannels(client);
+  if (!channels.length) return 0;
+  const alerts = await loadOpenAlerts(client, Math.max(limit * 4, 50));
+  let enqueued = 0;
+
+  for (const alert of alerts) {
+    for (const channel of channels) {
+      if (enqueued >= limit) return enqueued;
+      if (!channel.statusFilter.includes(alert.status)) continue;
+      if (severityRank(alert.severity) < severityRank(channel.minSeverity)) continue;
+      if (!matchesPattern(alert.action, channel.actionPatterns)) continue;
+      if (channel.tenantIds.length && (!alert.tenantId || !channel.tenantIds.includes(alert.tenantId))) continue;
+
+      const result = await client.query(
+        `
+        insert into public.platform_audit_notification_events (
+          channel_id, alert_id, audit_log_id, provider, status,
+          request_payload, metadata
+        )
+        values ($1, $2, $3, $4, 'pending', $5::jsonb, $6::jsonb)
+        on conflict (channel_id, alert_id) do nothing
+        returning id
+        `,
+        [
+          channel.id,
+          alert.id,
+          alert.auditLogId,
+          channel.provider,
+          JSON.stringify({
+            channelCode: channel.channelCode,
+            alertId: alert.id,
+            severity: alert.severity,
+            action: alert.action,
+          }),
+          JSON.stringify({ enqueuedBy: 'platform-audit-notifications-worker' }),
+        ],
+      );
+      if (result.rowCount) enqueued += 1;
+    }
+  }
+  return enqueued;
+}
+
+async function claimDueEvents(client: pg.PoolClient, limit: number) {
+  const result = await client.query<NotificationEventRow>(
+    `
+    with due as (
+      select e.id
+      from public.platform_audit_notification_events e
+      where e.status in ('pending', 'retrying')
+        and coalesce(e.next_attempt_at, e.scheduled_at, e.created_at) <= now()
+      order by coalesce(e.next_attempt_at, e.scheduled_at, e.created_at) asc, e.created_at asc
+      limit $1
+      for update skip locked
+    )
+    update public.platform_audit_notification_events e
+    set status = 'processing',
+        last_attempt_at = now(),
+        updated_at = now()
+    from due
+    join public.platform_audit_notification_channels c on true
+    join public.platform_audit_alerts a on true
+    left join public.tenants t on t.id = a.tenant_id
+    where e.id = due.id
+      and c.id = e.channel_id
+      and a.id = e.alert_id
+    returning e.id, e.channel_id as "channelId", c.channel_code as "channelCode",
+              c.name as "channelName", e.alert_id as "alertId",
+              e.audit_log_id as "auditLogId", e.provider, e.attempts,
+              c.webhook_url as "webhookUrl", c.secret_ref as "secretRef",
+              c.timeout_sec as "timeoutSec", a.tenant_id as "tenantId",
+              t.slug::text as "tenantSlug", t.name as "tenantName",
+              a.severity, a.status as "alertStatus", a.action,
+              a.target_type as "targetType", a.target_id as "targetId",
+              a.title, a.summary, a.details,
+              a.created_at as "alertCreatedAt"
+    `,
+    [limit],
+  );
+  return result.rows;
+}
+
+async function recoverStaleProcessingEvents(client: pg.PoolClient) {
+  const staleMs = Math.max(config.platformAuditNotificationRequestTimeoutMs * 3, 60_000);
+  await client.query(
+    `
+    update public.platform_audit_notification_events
+    set status = 'retrying',
+        next_attempt_at = now(),
+        last_error = coalesce(last_error, 'Recovered stale processing platform audit notification'),
+        updated_at = now()
+    where status = 'processing'
+      and coalesce(last_attempt_at, updated_at, created_at) < now() - ($1::int * interval '1 millisecond')
+    `,
+    [staleMs],
+  );
+}
+
+async function loadSecret(client: pg.PoolClient, secretRef: string | null) {
+  const parsed = parseSecretRef(secretRef);
+  if (!parsed) return null;
+  const result = await client.query<SecretRow>(
+    `
+    select secret_value as "secretValue", secret_json as "secretJson"
+    from app_private.platform_secrets
+    where secret_scope = $1
+      and secret_key = $2
+    limit 1
+    `,
+    [parsed.scope, parsed.key],
+  );
+  return result.rows[0] || null;
+}
+
+async function sendWebhook(request: PreparedRequest, timeoutMs: number): Promise<SendResult> {
+  const controller = new AbortController();
+  const timeout = setTimeout(() => controller.abort(), timeoutMs);
+  try {
+    const response = await fetch(request.url, {
+      method: 'POST',
+      headers: request.headers,
+      body: JSON.stringify(request.body),
+      signal: controller.signal,
+    });
+    const text = await response.text().catch(() => '');
+    return {
+      ok: response.ok,
+      httpCode: response.status,
+      responseSummary: truncate(text, 1900),
+      errorMessage: response.ok ? '' : `Platform audit notification webhook returned HTTP ${response.status}`,
+    };
+  } catch (error) {
+    return {
+      ok: false,
+      httpCode: 0,
+      responseSummary: '',
+      errorMessage: error instanceof Error ? error.message : String(error),
+    };
+  } finally {
+    clearTimeout(timeout);
+  }
+}
+
+async function markEventResult(
+  client: pg.PoolClient,
+  task: NotificationEventRow,
+  request: PreparedRequest | null,
+  result: SendResult,
+  attempt: number,
+) {
+  const backoff = config.platformAuditNotificationBackoffSeconds[Math.min(attempt - 1, config.platformAuditNotificationBackoffSeconds.length - 1)] || 60;
+  const requestPayload = {
+    provider: request?.provider || task.provider,
+    urlHost: request ? new URL(request.url).hostname : null,
+    body: request?.body ? redactAuditNotificationValue(request.body) : null,
+  };
+
+  if (result.ok) {
+    await client.query(
+      `
+      update public.platform_audit_notification_events
+      set status = 'sent',
+          attempts = $2,
+          next_attempt_at = null,
+          last_error = null,
+          last_http_code = $3,
+          last_response_summary = $4,
+          request_payload = $5::jsonb,
+          sent_at = now(),
+          updated_at = now()
+      where id = $1
+      `,
+      [task.id, attempt, result.httpCode, truncate(result.responseSummary), JSON.stringify(requestPayload)],
+    );
+    return 'sent';
+  }
+
+  const terminal = attempt >= config.platformAuditNotificationMaxAttempts;
+  await client.query(
+    `
+    update public.platform_audit_notification_events
+    set status = $2,
+        attempts = $3,
+        next_attempt_at = case when $2 = 'retrying' then now() + ($4::int * interval '1 second') else null end,
+        last_error = $5,
+        last_http_code = $6,
+        last_response_summary = $7,
+        request_payload = $8::jsonb,
+        updated_at = now()
+    where id = $1
+    `,
+    [
+      task.id,
+      terminal ? 'failed' : 'retrying',
+      attempt,
+      backoff,
+      truncate(result.errorMessage),
+      result.httpCode,
+      truncate(result.responseSummary),
+      JSON.stringify(requestPayload),
+    ],
+  );
+  return terminal ? 'failed' : 'retrying';
+}
+
+async function discardEvent(client: pg.PoolClient, task: NotificationEventRow, message: string) {
+  await client.query(
+    `
+    update public.platform_audit_notification_events
+    set status = 'discarded',
+        attempts = attempts + 1,
+        last_attempt_at = now(),
+        last_error = $2,
+        request_payload = $3::jsonb,
+        updated_at = now()
+    where id = $1
+    `,
+    [
+      task.id,
+      truncate(message),
+      JSON.stringify({
+        provider: task.provider,
+        urlHost: '',
+        body: null,
+      }),
+    ],
+  );
+  return 'discarded';
+}
+
+async function processEvent(task: NotificationEventRow) {
+  const client = await pool.connect();
+  try {
+    if (!PROVIDERS.includes(task.provider)) {
+      return discardEvent(client, task, 'Unsupported platform audit notification provider');
+    }
+    const secret = await loadSecret(client, task.secretRef);
+    const request = prepareRequest(task, secret);
+    const timeoutMs = Math.max(1000, (task.timeoutSec || 0) * 1000 || config.platformAuditNotificationRequestTimeoutMs);
+    const attempt = task.attempts + 1;
+    const result = await sendWebhook(request, timeoutMs);
+    return markEventResult(client, task, request, result, attempt);
+  } catch (error) {
+    const attempt = task.attempts + 1;
+    return markEventResult(client, task, null, {
+      ok: false,
+      httpCode: 0,
+      responseSummary: '',
+      errorMessage: error instanceof Error ? error.message : String(error),
+    }, attempt);
+  } finally {
+    client.release();
+  }
+}
+
+export async function processPlatformAuditNotificationBatch(limit = config.platformAuditNotificationBatchSize): Promise<ProcessResult> {
+  const client = await pool.connect();
+  let tasks: NotificationEventRow[] = [];
+  let enqueued = 0;
+  try {
+    await client.query('begin');
+    await recoverStaleProcessingEvents(client);
+    enqueued = await enqueueNotificationEvents(client, limit);
+    tasks = await claimDueEvents(client, limit);
+    await client.query('commit');
+  } catch (error) {
+    await client.query('rollback');
+    throw error;
+  } finally {
+    client.release();
+  }
+
+  const result: ProcessResult = { enqueued, processed: tasks.length, sent: 0, failed: 0, retrying: 0, discarded: 0 };
+  for (const task of tasks) {
+    const status = await processEvent(task);
+    if (status === 'sent') result.sent += 1;
+    if (status === 'failed') result.failed += 1;
+    if (status === 'retrying') result.retrying += 1;
+    if (status === 'discarded') result.discarded += 1;
+  }
+  return result;
+}
--- a/docs/refactor/backend-capability-status.md
+++ b/docs/refactor/backend-capability-status.md
@@ -145,7 +145,7 @@
 | 班级/学生/教师管理 | 可联调 | `/api/tenant-admin/classes`、`classes/members`、`students`、`teachers`，支持班级范围权限和审计 |
 | 学生批量运营 | 可联调 | `/api/tenant-admin/students/bulk-upsert`、`students/status`、`classes/members/bulk-assign`、`students/notes`、`students/followups`；支持逐行结果、限量、防跨租户和教师范围校验 |
 | 用户站内通知查看 | 可联调 | `GET /api/tenant-admin/user-notifications`；需要 `notifications:read` 权限，支持按用户、状态、类型查询租户内通知和状态汇总，租户后台只读不直接代学生改状态 |
-| 平台租户/详情/账务资料/审计/告警/套餐/订阅/账单/用量 | 可联调 | `/api/platform-admin/*`；已支持租户列表、创建租户、租户详情、状态变更、账务资料维护、平台审计日志查询、CSV/JSON 审计导出、平台审计告警规则查询、告警列表、确认/解决/忽略、SaaS 套餐、订阅、账单、订阅账单候选预览、dry-run、批量生成、自动计费 worker、重复开票保护、收款、逾期标记、内部催缴台账和用量；审计导出和告警响应都会对 `details` 中的 token/secret/password/key 等敏感字段递归脱敏；`apps/worker --job platform-audit-alerts` 会把租户状态变更、账务资料变更、批量开票、逾期处理、手工收款确认、审计导出等高风险平台审计动作生成内部告警；创建租户、状态变更、账务资料维护、订阅批量开票、自动开票、逾期催缴、手工收款确认、审计导出和告警状态更新会写入审计 |
+| 平台租户/详情/账务资料/审计/告警/套餐/订阅/账单/用量 | 可联调 | `/api/platform-admin/*`；已支持租户列表、创建租户、租户详情、状态变更、账务资料维护、平台审计日志查询、CSV/JSON 审计导出、平台审计告警规则查询、告警列表、确认/解决/忽略、审计告警外部通知渠道和发送事件、SaaS 套餐、订阅、账单、订阅账单候选预览、dry-run、批量生成、自动计费 worker、重复开票保护、收款、逾期标记、内部催缴台账和用量；审计导出、告警响应和通知事件都会对 `details`/payload 中的 token/secret/password/key 等敏感字段递归脱敏；`apps/worker --job platform-audit-alerts` 会把租户状态变更、账务资料变更、批量开票、逾期处理、手工收款确认、审计导出等高风险平台审计动作生成内部告警；`apps/worker --job platform-audit-notifications` 会按 `platform_audit_notification_channels` 把开放告警推送到 generic/钉钉/飞书/企微 webhook，签名密钥放 `app_private.platform_secrets` 且 API 不回显原文；创建租户、状态变更、账务资料维护、订阅批量开票、自动开票、逾期催缴、手工收款确认、审计导出、告警状态更新和通知渠道变更会写入审计 |
 | 数据看板聚合接口 | 可联调 | `GET /api/tenant-admin/dashboard`；支持 `7d/30d/90d`、地区筛选、学生/学习/内容/订单/激活码/反馈卡片、趋势、24h 活跃、题型分布、科目排行、地区统计、套餐销量和运营动态 |
 | 平台公共题库授权 | 可联调 | `/api/platform-admin/question-banks`、`question-bank-grants`；支持按 SaaS 套餐、指定租户或全部活跃租户披露平台公共题库 |
 | 租户采纳/同步公共题库 | 可联调 | `/api/tenant-content/public-question-banks`、`public-question-banks/adopt`、`public-question-banks/sync`、`public-question-banks/conflicts`、`public-question-banks/conflicts/resolve`、`public-question-banks/conflicts/resolve-batch`、`tenant-content/notifications`；租户只能看到自己订阅/授权范围内题库，采纳后生成租户自己的题库、入口、集合和题目快照，可直接进入练习；平台更新后可手动或由 worker 自动同步，新增/更新和冲突会生成租户内容通知；租户自改题目会标记冲突并跳过；后台可查询最近一次冲突明细，并可单条或批量选择“采纳平台版本”/“保留本地版本”，操作会重新校验授权并写入逐条审计，冲突全部处理后相关通知自动 resolved |
@@ -203,6 +203,7 @@ npm run test:worker:commerce
 npm run test:worker:platform-billing
 npm run test:worker:platform-dunning
 npm run test:worker:platform-audit-alerts
+npm run test:worker:platform-audit-notifications
 npm run test:worker:assets
 npm run test:worker:exports
 npm run test:worker:public-banks
--- a/docs/refactor/backend-handoff-roadmap.md
+++ b/docs/refactor/backend-handoff-roadmap.md
@@ -21,7 +21,7 @@
 | 模块 | 当前状态 | 已经具备 | 上线前还要补 |
 | --- | --- | --- | --- |
 | 多租户底座 | 可联调 | 租户、域名、品牌、设置、RLS 基础、审计、Supabase JWT/API 身份映射；`npm run test:rls` 已提供本地动态租户隔离验收；`npm run smoke:auth:remote` 已提供真实云端 Supabase access token 回归脚本 | 真实云端 Auth/JWKS 回归需要在预生产/生产环境执行并留档，生产 RLS 深测继续执行 |
-| 平台后台 | 基础完成 | 租户、租户详情、账务资料维护、平台审计日志查询、平台审计 CSV/JSON 导出、平台审计告警规则/列表/确认/解决、platform-audit-alerts worker、套餐、订阅、订阅账单候选预览、dry-run、批量生成、自动计费 worker、重复开票保护、服务费、人工收款、逾期标记、内部催缴台账、用量、公共题库授权、公共题库自动同步 worker、公共题库冲突单条/批量处理 API、公共题库同步通知第一版 | 外部催缴通知、平台在线收款、平台审计告警外部通知/升级策略、更完整运营消息 |
+| 平台后台 | 基础完成 | 租户、租户详情、账务资料维护、平台审计日志查询、平台审计 CSV/JSON 导出、平台审计告警规则/列表/确认/解决、platform-audit-alerts worker、审计告警外部通知渠道/事件 API、platform-audit-notifications worker、套餐、订阅、订阅账单候选预览、dry-run、批量生成、自动计费 worker、重复开票保护、服务费、人工收款、逾期标记、内部催缴台账、用量、公共题库授权、公共题库自动同步 worker、公共题库冲突单条/批量处理 API、公共题库同步通知第一版 | 外部催缴通知、平台在线收款、平台审计告警升级策略和更完整运营消息 |
 | 租户后台 | 可联调 | 品牌、域名、支付账户、登录配置、密钥掩码、活动、兑换码、优惠券、勋章管理/手动发放/签到/积分/反馈/活动自动发放、积分任务、积分兑换、用户站内通知查看、成员权限、角色模板、菜单/模块/字段权限配置 API、班级/教师/学生范围权限；Taro 工作台已接权限驱动模块入口，学生运营页已接学生创建/更新、禁用/恢复、批量导入、批量分班、备注和跟进任务第一版，租户设置页已接角色模板和成员绑定操作台第一版，营销中心已接 CRM 配置/队列、分佣结算、优惠券规则/核销报表、积分任务/兑换操作台和用户通知查看第一版 | 更细的数据范围组合、成员批量运营、真实打款/导出/凭证和完整权限菜单 |
 | 题库与练习 | 可联调 | 内容入口、任意深度分类、题目集合、顺序/随机/全真模拟蓝图、组卷快照、客观题后端判分、主观题 `selfJudgedCorrect` 自评、阅读理解/案例分析 `subAnswers` 多小题判分、答题、错题、收藏、模考报告、排行榜、公共题库采纳快照、手动同步、自动同步 worker、冲突查询/单条和批量处理 API、公共题库同步通知、JSON/试卷 payload 导出、PDF/Word 异步导出 worker、水印和资料发布路径、每日一练九宫格 metadata、PDF/Word 运营版式和 ZIP 图片素材包 | 长题干/公式图片混排体验、导出模板精排、导出操作台、排行榜防刷/预聚合 |
 | 背单词 | 可联调 | 单元、单词、进度、收藏、统计、每日计划、JSON/CSV/Excel 导入、排行榜 | 更细复习参数 |
@@ -35,7 +35,7 @@
 | 内容导入 | 可联调 | 题目、单词、知识手册、分数线、视频 JSON/CSV/Excel preview/import、issue、job/detail、审计、幂等、`executionMode=async`、imports worker、导入后复检、模板下载、字段映射 API、字段映射覆盖白名单校验、PocketBase JSON dry-run 报告；Taro 租户内容页已接上传/粘贴预览、模板文件下载、字段别名编辑、同步/异步执行、异步轮询和复检详情第一版 | 真实数据 dry-run 执行验收、抽样校验和导入性能压测 |
 | 数据看板 | 可联调 | 租户 dashboard 聚合接口，收益、注册、学习、内容、激活码、反馈、趋势、24h 活跃、套餐销量和运营动态 | 预聚合 worker、缓存、慢 SQL 监控和销售转化看板 |
 | AI 择校推荐 | 可联调 | `ai_recommendation_reports`、SVIP 门禁、学生输入 schema、地区/分数线上下文、`local_rules` 稳定 JSON、报告列表/详情和 Taro 学生端基础页 | 真实 AI provider、prompt 版本管理、租户后台配置、报告 PDF 渲染和人工复核流程 |
-| Taro 前端 | 地基已建 | `apps/taro` 已有 Taro 4 React 工程、H5 三入口、租户解析、统一 API client、Supabase Auth client 初始化；学生端、租户后台和平台后台均已有第一批真实 API 页面；学生端已接地区选择、刷题答题卡、后端权威断点续练、本地进度恢复、模拟倒计时、主观题后端自评、阅读理解/案例分析多小题作答、错题/收藏复习、题目反馈、视频解析、练习/模考报告、收银台、订单详情和售后入口第一版；平台后台已接关键写操作、租户详情、账务资料编辑、平台审计查询和 CSV 导出、开放审计告警展示/确认/解决、订阅账单候选预览/dry-run/批量生成、自动计费生成结果查看、逾期预览和催缴记录第一版，租户工作台已接权限驱动模块入口，租户学生运营页已接创建/更新、禁用/恢复、批量导入、批量分班、备注和跟进任务第一版，租户内容页已接公共题库采纳/同步、冲突查看、单条/批量采纳平台或保留本地、导入问题、字段模板预览/下载、上传/粘贴预览、字段别名覆盖、同步/异步导入、异步轮询和复检详情第一版；租户设置页已接角色模板和成员绑定操作台第一版；租户营销中心已接 CRM 配置保存、队列筛选、分佣规则、成员比例、订单明细、结算生成/审核/标记线下打款第一版 | 长题干/公式图片混排体验、更细数据范围 UI、平台审计告警外部通知/升级策略、小程序兼容验证和端到端测试 |
+| Taro 前端 | 地基已建 | `apps/taro` 已有 Taro 4 React 工程、H5 三入口、租户解析、统一 API client、Supabase Auth client 初始化；学生端、租户后台和平台后台均已有第一批真实 API 页面；学生端已接地区选择、刷题答题卡、后端权威断点续练、本地进度恢复、模拟倒计时、主观题后端自评、阅读理解/案例分析多小题作答、错题/收藏复习、题目反馈、视频解析、练习/模考报告、收银台、订单详情和售后入口第一版；平台后台已接关键写操作、租户详情、账务资料编辑、平台审计查询和 CSV 导出、开放审计告警展示/确认/解决、审计告警外部通知渠道/事件状态摘要、订阅账单候选预览/dry-run/批量生成、自动计费生成结果查看、逾期预览和催缴记录第一版，租户工作台已接权限驱动模块入口，租户学生运营页已接创建/更新、禁用/恢复、批量导入、批量分班、备注和跟进任务第一版，租户内容页已接公共题库采纳/同步、冲突查看、单条/批量采纳平台或保留本地、导入问题、字段模板预览/下载、上传/粘贴预览、字段别名覆盖、同步/异步导入、异步轮询和复检详情第一版；租户设置页已接角色模板和成员绑定操作台第一版；租户营销中心已接 CRM 配置保存、队列筛选、分佣规则、成员比例、订单明细、结算生成/审核/标记线下打款第一版 | 长题干/公式图片混排体验、更细数据范围 UI、平台审计告警升级策略、小程序兼容验证和端到端测试 |

 ## 前端接入建议

@@ -79,7 +79,7 @@
 - 对象存储：上传/下载签名已接入阿里云 OSS、腾讯云 COS、Supabase Storage；上传确认、PDF/图片预览签名、动态水印上下文、assets worker 复检、内置安全扫描、外部 HTTP scanner 接入层和题库导出 PDF/Word/每日一练 ZIP worker 已完成，继续补视频播放防盗链、真实 AV/内容安全服务联调和转码/CDN 级水印。
 - 真实数据 dry-run：导出 PocketBase 用户、题库、单词、知识手册、分数线、订单、权益，先跑 `npm run pb:import:dry-run -- --profile=production --json --fail-on-warnings`，确认 `migrationReadiness` 的必需集合和关键字段覆盖率通过，再跑迁移和校验报告。
 - 生产环境配置：`.env.example` 和 `npm run readiness:production` / `npm run readiness:production:db` 已补；继续补数据库迁移流程、备份恢复、日志、告警和 API 容器部署说明。
- Taro scaffold：`apps/taro` 地基已建立；学生端、租户后台、平台后台第一批 H5 页面已接真实 API，学生端已接地区选择、错题/收藏复习、阅读理解/案例分析多小题作答、题目反馈、视频解析、练习/模考报告、收银台、订单详情、售后入口、积分任务/兑换/积分明细和消息中心第一版；平台后台关键写操作、租户详情、账务资料编辑、最近平台审计查询/CSV 导出、开放审计告警展示/确认/解决、订阅账单候选/dry-run/批量生成、自动计费生成结果查看、逾期预览和催缴记录第一版已接入，租户工作台已接权限驱动模块入口，租户学生运营页已接学生创建/更新、禁用/恢复、批量导入、批量分班、备注和跟进任务第一版，租户内容页已接公共题库采纳/同步、冲突查看、单条/批量采纳平台或保留本地、导入问题、字段模板预览/下载、上传/粘贴预览、字段别名覆盖、同步/异步导入、异步轮询和复检详情第一版，租户设置页已接角色模板创建/编辑/停用、成员绑定模板和权限可见性配置第一版，租户营销中心已接 CRM 配置/队列、分佣结算、优惠券规则/核销报表、积分任务/兑换操作台和用户通知查看第一版；下一步补独立消息中心增强、公式图片混排、更细数据范围 UI、平台审计告警外部通知/升级策略和小程序兼容验证。
+- Taro scaffold：`apps/taro` 地基已建立；学生端、租户后台、平台后台第一批 H5 页面已接真实 API，学生端已接地区选择、错题/收藏复习、阅读理解/案例分析多小题作答、题目反馈、视频解析、练习/模考报告、收银台、订单详情、售后入口、积分任务/兑换/积分明细和消息中心第一版；平台后台关键写操作、租户详情、账务资料编辑、最近平台审计查询/CSV 导出、开放审计告警展示/确认/解决、审计告警外部通知渠道/事件状态摘要、订阅账单候选/dry-run/批量生成、自动计费生成结果查看、逾期预览和催缴记录第一版已接入，租户工作台已接权限驱动模块入口，租户学生运营页已接学生创建/更新、禁用/恢复、批量导入、批量分班、备注和跟进任务第一版，租户内容页已接公共题库采纳/同步、冲突查看、单条/批量采纳平台或保留本地、导入问题、字段模板预览/下载、上传/粘贴预览、字段别名覆盖、同步/异步导入、异步轮询和复检详情第一版，租户设置页已接角色模板创建/编辑/停用、成员绑定模板和权限可见性配置第一版，租户营销中心已接 CRM 配置/队列、分佣结算、优惠券规则/核销报表、积分任务/兑换操作台和用户通知查看第一版；下一步补独立消息中心增强、公式图片混排、更细数据范围 UI、平台审计告警升级策略和小程序兼容验证。

 ### P1：商用收费和运营能力

--- a/docs/refactor/backend-progress.md
+++ b/docs/refactor/backend-progress.md
@@ -14,12 +14,12 @@
  - `video`：题目视频讲解、批量预加载、通用视频搜索。
  - `commerce`：订单创建/列表/详情/状态轮询、支付确认、支付 provider/webhook、激活码预检查/兑换、优惠券领取/抵扣、规则复核、权益查询。
  - `referral`：销售/代理邀请码、首绑客资保护、销售统计、团队关系、CRM 队列、分佣设置、佣金来源汇总、结算单和审核/打款状态。
-  - `platform-admin`：平台方租户管理、租户详情、账务资料维护、平台审计日志查询/导出、平台审计告警规则/告警状态流、SaaS 套餐、订阅、订阅账单候选预览/dry-run/批量生成、自动计费 worker、服务费收款、逾期标记、内部催缴台账、使用量。
+  - `platform-admin`：平台方租户管理、租户详情、账务资料维护、平台审计日志查询/导出、平台审计告警规则/告警状态流、审计告警外部通知渠道和发送事件、SaaS 套餐、订阅、订阅账单候选预览/dry-run/批量生成、自动计费 worker、服务费收款、逾期标记、内部催缴台账、使用量。
  - `tenant-admin`：租户资料、品牌、公开设置、域名、支付账户、登录 provider、私密密钥掩码、活动内容、考试日期、题目反馈处理、用户站内通知查看、激活码批次、优惠券规则和核销报表、勋章管理/发放、成员管理、角色模板、班级/学生/教师范围权限、权限矩阵、审计查询。
  - `tenant-content`：租户后台内容入口、任意深度分类树、考试意向标记、题目集合、练习蓝图、题目、视频、分数线、单词、知识手册、资料资源、题目/单词/知识手册/分数线/视频 JSON 导入维护。
  - `tenant`：域名/租户解析。
 - 鉴权上下文已支持 Supabase Auth JWT 和迁移期 `tk_` session 双入口，JWT 通过 `auth.users.id -> platform_users.auth_user_id -> tenant_memberships` 映射业务用户和租户；平台管理员 JWT 已可访问平台后台。
- 平台后台租户运营第一版已补齐：`GET /api/platform-admin/tenants/detail` 返回租户、域名、订阅、账单、用量和账务资料；`PUT /api/platform-admin/tenants/billing-profile` 维护开票/联系/银行掩码资料；`GET /api/platform-admin/audit-logs` 支持按租户、动作、目标、操作者、日期和关键词查询平台审计；`GET /api/platform-admin/audit-logs/export` 支持平台管理员导出 CSV/JSON，返回 base64 内容、sha256、行数和筛选条件，并对 `details` 中的 token/secret/password/key 等敏感字段递归脱敏，同时写入 `platform.audit.exported` 审计；`GET /api/platform-admin/audit-alert-rules`、`GET /api/platform-admin/audit-alerts` 和 `POST /api/platform-admin/audit-alerts/status` 支持平台内部审计告警规则查询、开放告警查询、确认/解决/忽略，API 返回告警 details 时递归脱敏敏感字段；`apps/worker --job platform-audit-alerts` 会把租户状态变更、账务资料变更、批量开票、逾期处理、手工收款确认、审计导出等高风险平台审计动作生成内部告警；`GET /api/platform-admin/invoices/subscription-candidates` 和 `POST /api/platform-admin/invoices/from-subscriptions-batch` 支持订阅账单候选预览、dry-run、批量生成、重复开票跳过和平台审计；`apps/worker --job platform-billing` 可自动为即将到期且未开票订阅生成服务费账单；`POST /api/platform-admin/invoices/process-overdue`、`GET /api/platform-admin/invoices/reminders` 和 `apps/worker --job platform-dunning` 可处理已逾期未结清服务费账单，写入内部催缴台账和审计。创建租户、状态变更、账务资料维护、订阅批量开票、自动计费、逾期催缴、手工收款确认、审计导出和审计告警状态更新会写入审计日志，API/worker 集成测试已覆盖平台管理员可操作、学生越权拒绝、重复保护、非法输入拒绝、敏感字段脱敏和审计记录存在。
+- 平台后台租户运营第一版已补齐：`GET /api/platform-admin/tenants/detail` 返回租户、域名、订阅、账单、用量和账务资料；`PUT /api/platform-admin/tenants/billing-profile` 维护开票/联系/银行掩码资料；`GET /api/platform-admin/audit-logs` 支持按租户、动作、目标、操作者、日期和关键词查询平台审计；`GET /api/platform-admin/audit-logs/export` 支持平台管理员导出 CSV/JSON，返回 base64 内容、sha256、行数和筛选条件，并对 `details` 中的 token/secret/password/key 等敏感字段递归脱敏，同时写入 `platform.audit.exported` 审计；`GET /api/platform-admin/audit-alert-rules`、`GET /api/platform-admin/audit-alerts` 和 `POST /api/platform-admin/audit-alerts/status` 支持平台内部审计告警规则查询、开放告警查询、确认/解决/忽略，API 返回告警 details 时递归脱敏敏感字段；`apps/worker --job platform-audit-alerts` 会把租户状态变更、账务资料变更、批量开票、逾期处理、手工收款确认、审计导出等高风险平台审计动作生成内部告警；`GET/PUT /api/platform-admin/audit-notification-channels` 和 `GET /api/platform-admin/audit-notification-events` 已支持平台审计告警外部通知渠道配置和发送事件查询，`apps/worker --job platform-audit-notifications` 可按渠道把开放告警推送到 generic/钉钉/飞书/企微 webhook，签名密钥进入 `app_private.platform_secrets`，API 只回显 `secretRef` 和 webhook host/path；`GET /api/platform-admin/invoices/subscription-candidates` 和 `POST /api/platform-admin/invoices/from-subscriptions-batch` 支持订阅账单候选预览、dry-run、批量生成、重复开票跳过和平台审计；`apps/worker --job platform-billing` 可自动为即将到期且未开票订阅生成服务费账单；`POST /api/platform-admin/invoices/process-overdue`、`GET /api/platform-admin/invoices/reminders` 和 `apps/worker --job platform-dunning` 可处理已逾期未结清服务费账单，写入内部催缴台账和审计。创建租户、状态变更、账务资料维护、订阅批量开票、自动计费、逾期催缴、手工收款确认、审计导出、审计告警状态更新和通知渠道变更会写入审计日志，API/worker 集成测试已覆盖平台管理员可操作、学生越权拒绝、重复保护、非法输入拒绝、敏感字段脱敏和审计记录存在。
 - 租户自定义角色模板已落库：`tenant_role_templates` 支持权限、菜单、模块、字段和数据范围配置，成员可通过 `role_template_id` 绑定模板。
 - 班级与学生范围权限已落库：`tenant_classes`、`tenant_class_members` 支持教师/班主任/助教/学生分组，教师按负责班级查看学生，字段权限可脱敏学生手机号。
 - 学生运营管理已落库：`tenant_student_notes`、`tenant_student_followups` 支持学生备注、家校/班主任/销售跟进任务、可见性、指派、完成状态和审计；批量学生 upsert、批量分班、禁用/恢复也已接入权限校验。
@@ -35,6 +35,7 @@
 - 已新增 platform-billing worker 和 `npm run test:worker:platform-billing`，用于自动处理即将到期且未开票的 SaaS 订阅；worker 使用订阅行锁和账单查重保证幂等，自动生成 `tenant_invoices/tenant_invoice_items` 并写 `platform.invoice.subscription_auto_created` 审计。
 - 已新增 platform-dunning worker 和 `npm run test:worker:platform-dunning`，用于扫描已过 `due_date` 且未结清的 SaaS 服务费账单；worker 使用账单行锁和每日唯一催缴约束保证幂等，自动标记 `overdue`、推送租户 `billing_status=past_due`、生成 `tenant_invoice_reminders` 内部催缴记录并写 `platform.invoice.overdue_processed` 审计。
 - 已新增 platform-audit-alerts worker 和 `npm run test:worker:platform-audit-alerts`，用于扫描高风险平台审计动作并生成内部告警；worker 匹配启用规则、对告警 details 递归脱敏、通过 `(rule_id, audit_log_id)` 保证幂等，并写 `platform.audit.alert_created` 审计。
+- 已新增 platform-audit-notifications worker 和 `npm run test:worker:platform-audit-notifications`，用于把开放平台审计告警按平台配置渠道推送到 generic/钉钉/飞书/企微 webhook；worker 先入队 `platform_audit_notification_events`，再发送并记录重试、HTTP 状态、脱敏后的请求 payload，避免泄露 webhook 签名密钥和告警敏感 details。
 - 已新增 assets worker 和 `npm run test:worker:assets`，用于复检 `content_assets` 托管对象元数据；正常资源会写入复检证据，异常资源会自动下架为 `draft`、标记 `upload_status=failed`，并记录审计与安全标记。
 - 已新增分数线/视频 JSON 导入接口和集成测试：分数线支持字段、院校、专业、记录、动态字段值；视频支持视频元数据、资源引用、访问模式和题目绑定，全部复用 `content_import_jobs/items/issues` 管线。
 - 已新增 CSV/Excel 导入解析层：题目、单词、知识手册、分数线和视频都可通过 `sourceFormat=csv/excel` 先解析为规范 payload，再进入同一套 preview/import、逐行 issue、幂等和审计管线；分数线支持多 Sheet Excel。
@@ -64,6 +65,9 @@ GET  /api/platform-admin/audit-logs/export
 GET  /api/platform-admin/audit-alert-rules
 GET  /api/platform-admin/audit-alerts
 POST /api/platform-admin/audit-alerts/status
+GET  /api/platform-admin/audit-notification-channels
+PUT  /api/platform-admin/audit-notification-channels
+GET  /api/platform-admin/audit-notification-events
 POST /api/platform-admin/subscriptions
 GET  /api/platform-admin/invoices
 POST /api/platform-admin/invoices
@@ -296,6 +300,7 @@ npm run test:worker:commerce
 npm run test:worker:platform-billing
 npm run test:worker:platform-dunning
 npm run test:worker:platform-audit-alerts
+npm run test:worker:platform-audit-notifications
 npm run test:worker:assets
 npm run test:worker:imports
 npm run test:worker:public-banks
--- a/docs/refactor/frontend-handoff-index.md
+++ b/docs/refactor/frontend-handoff-index.md
@@ -31,7 +31,7 @@

 - `apps/taro` 已经建立，且学生端第一批 H5 页面已经可构建：登录、首页、地区选择、题库、练习、错题/收藏、练习报告、视频解析、会员收银台、订单详情、背单词、知识手册、分数线、资料、个人中心。
 - 租户后台第一批 H5 页面已经可构建：工作台、数据看板、学生/班级、题库内容、营销中心、财务运营、租户设置；工作台已接 `/api/tenant-admin/permissions` 做权限驱动模块入口；学生运营页已具备学生创建/更新、状态禁用/恢复、批量导入、批量分班、学生备注和跟进任务第一版；题库内容页已具备公共题库采纳/同步、同步通知、冲突查看、单条/批量采纳平台版本或保留本地版本、导入任务详情、异步轮询、导入问题查看、模板预览/下载、导入后复检详情、JSON/CSV/Excel 选择文件或粘贴内容、后端预览、字段别名覆盖和同步/异步执行导入的第一版操作能力；营销中心已具备 CRM 配置、CRM 队列查看、分佣规则、成员分佣比例、分佣订单、结算单生成/审核/标记打款、优惠券规则/核销报表和用户通知查看第一版；财务运营页已具备退款申请/审核/供应商提交与查询、官方账单下载任务、对账批次/异常明细、差错工单处理、人工调整凭证提交/复核和异常订单运营台第一版；租户设置页已具备主题模板、草稿预览/发布、角色模板新建、编辑、停用、成员搜索/新建、成员绑定模板、成员状态和额外权限覆盖第一版。
- 平台后台第一批 H5 页面已经可构建：工作台、租户管理、账务中心、公共题库授权；租户管理页已接租户详情、账务资料编辑和最近平台审计，工作台已展示最近平台审计摘要、支持导出最近平台审计 CSV，并可查看开放审计告警、确认或解决告警；账务中心已接订阅账单候选预览、dry-run、批量生成、自动计费生成结果查看、逾期预览、内部催缴生成和催缴记录查看。
+- 平台后台第一批 H5 页面已经可构建：工作台、租户管理、账务中心、公共题库授权；租户管理页已接租户详情、账务资料编辑和最近平台审计，工作台已展示最近平台审计摘要、支持导出最近平台审计 CSV，并可查看开放审计告警、确认或解决告警，也能查看审计告警外部通知渠道和最近发送事件摘要；账务中心已接订阅账单候选预览、dry-run、批量生成、自动计费生成结果查看、逾期预览、内部催缴生成和催缴记录查看。
 - 可以继续复刻旧题库学生端主要视觉和交互：勋章展示、小程序端分享/支付体验、背单词更细统计和更完整复盘体验。地区选择、刷题答题卡、后端权威断点续练、本地进度恢复、模拟倒计时、主观题后端自评、阅读理解/案例分析多小题、题干/选项/解析 RichContent 安全渲染、视频解析、题目反馈、模考/练习报告逐题复盘、错题复习、收藏复习、背单词卡片学习/发音/收藏练习、商城收银台、订单详情和售后入口已经有第一版页面。
 - 可以按新后端主模型接入内容导航：
  - `content_entries`
@@ -111,4 +111,4 @@
 | 账务中心 | `apps/taro/src/pages/platform-admin/billing/index.tsx` | `platform-admin/plans`、`invoices`、`invoices/subscription-candidates`、`invoices/from-subscription`、`invoices/from-subscriptions-batch`、`invoices/payments/manual-confirm`、`usage`、`subscriptions`、`POST usage` |
 | 公共题库 | `apps/taro/src/pages/platform-admin/question-banks/index.tsx` | `platform-admin/question-banks`、`question-bank-grants`、`PUT question-bank-grants` |

-当前平台后台已经具备第一批写操作台：创建租户、租户详情查看、状态变更、账务资料维护、最近平台审计查询、最近平台审计 CSV 导出、开放审计告警确认/解决、订阅开通、账单生成、订阅账单候选预览、dry-run、批量生成、自动计费生成结果查看、人工收款确认、逾期预览、内部催缴生成、催缴记录查看、用量录入、公共题库授权编辑；这些动作均经过前端基础校验和二次确认，后端继续执行真实权限、重复开票保护和审计。平台审计导出只开放给平台管理员，后端会对导出 `details` 中的 token/secret/password/key 等敏感字段脱敏，并返回 `contentBase64 + sha256`，H5 可直接下载，小程序端建议先展示“已生成，需在 H5 管理台下载”。平台审计告警由 `platform-audit-alerts` worker 从高风险平台审计动作生成，前端只能调用告警查询和状态更新 API，不要直接写 `platform_audit_alerts` 表；后端会对告警 `details` 递归脱敏。下一批继续补租户基础资料编辑增强、平台审计告警外部通知/升级策略、外部催缴通知、平台在线收款和更细平台权限点。
+当前平台后台已经具备第一批写操作台：创建租户、租户详情查看、状态变更、账务资料维护、最近平台审计查询、最近平台审计 CSV 导出、开放审计告警确认/解决、审计告警外部通知渠道/事件摘要、订阅开通、账单生成、订阅账单候选预览、dry-run、批量生成、自动计费生成结果查看、人工收款确认、逾期预览、内部催缴生成、催缴记录查看、用量录入、公共题库授权编辑；这些动作均经过前端基础校验和二次确认，后端继续执行真实权限、重复开票保护和审计。平台审计导出只开放给平台管理员，后端会对导出 `details` 中的 token/secret/password/key 等敏感字段脱敏，并返回 `contentBase64 + sha256`，H5 可直接下载，小程序端建议先展示“已生成，需在 H5 管理台下载”。平台审计告警由 `platform-audit-alerts` worker 从高风险平台审计动作生成，外部通知由 `platform-audit-notifications` worker 根据平台渠道配置发送；前端只能调用告警查询、状态更新、通知渠道和发送事件 API，不要直接写 `platform_audit_alerts`、`platform_audit_notification_channels` 或 `platform_audit_notification_events` 表。后端会对告警 `details` 和通知 payload 递归脱敏，渠道 API 只回显 `secretRef` 和 webhook host/path。下一批继续补租户基础资料编辑增强、平台审计告警升级策略、外部催缴通知、平台在线收款和更细平台权限点。
--- a/docs/refactor/legacy-feature-gap-matrix.md
+++ b/docs/refactor/legacy-feature-gap-matrix.md
@@ -73,13 +73,13 @@

 | 功能 | 新后端状态 | 待补齐 |
 | --- | --- | --- |
-| 创建/管理租户 | 已覆盖 | 平台后台租户列表、创建租户、租户详情、状态变更、账务资料维护、最近平台审计查询/导出、开放审计告警查询/确认/解决、订阅账单候选预览、dry-run、批量生成、自动计费 worker、逾期标记和内部催缴台账已接真实 API/worker；后续补外部催缴通知、租户基础资料编辑增强和审计告警外部通知/升级策略 |
+| 创建/管理租户 | 已覆盖 | 平台后台租户列表、创建租户、租户详情、状态变更、账务资料维护、最近平台审计查询/导出、开放审计告警查询/确认/解决、审计告警外部通知渠道/事件、订阅账单候选预览、dry-run、批量生成、自动计费 worker、逾期标记和内部催缴台账已接真实 API/worker；后续补外部催缴通知、租户基础资料编辑增强和审计告警升级策略 |
 | SaaS 套餐 | 部分覆盖 | 已和公共题库授权打通；后续继续补地区数量、科目范围、存储/学生数等组合套餐限制 |
 | 年费/服务费账单 | 已覆盖 | 订阅账单候选、批量开票、自动计费、人工收款、逾期标记、租户 `past_due` 状态和内部催缴记录已覆盖；真实平台在线收款、外部短信/微信订阅消息/企业微信催缴和停用策略待补 |
 | 租户用量记录 | 已覆盖 | 自动采集 worker 待补 |
 | 公共题库/地区题库 | 部分覆盖 | 已有平台公共题库列表、授权编辑、租户可采纳列表、采纳快照复制、采纳后练习组卷、手动同步 API、自动同步 worker、同步通知、冲突查询 API、单条/批量冲突“采纳平台/保留本地”处理和平台后台页面；同步会重新校验授权、复制平台新增/更新题目，并对租户自改题目返回冲突不覆盖 | 缺生产定时调度、失败告警和更完整运营消息 |
 | 跨租户运营看板 | 部分覆盖 | overview 有基础；缺完整 BI 聚合 |
-| 租户安全审计 | 部分覆盖 | 租户侧 audit logs 和平台侧 `/api/platform-admin/audit-logs` 第一版已有，平台侧 `/api/platform-admin/audit-logs/export` 可按租户、动作、目标、操作者、日期和关键词导出 CSV/JSON，导出会递归脱敏敏感字段并写审计；平台审计告警规则、开放告警查询、确认/解决/忽略和 `platform-audit-alerts` worker 第一版已覆盖，告警 details 会递归脱敏；平台后台工作台/租户详情页可查看最近审计，工作台可导出 CSV 并处理开放告警；缺更完整筛选 UI、外部通知和升级策略 |
+| 租户安全审计 | 部分覆盖 | 租户侧 audit logs 和平台侧 `/api/platform-admin/audit-logs` 第一版已有，平台侧 `/api/platform-admin/audit-logs/export` 可按租户、动作、目标、操作者、日期和关键词导出 CSV/JSON，导出会递归脱敏敏感字段并写审计；平台审计告警规则、开放告警查询、确认/解决/忽略和 `platform-audit-alerts` worker 第一版已覆盖，告警 details 会递归脱敏；`platform-audit-notifications` worker 已支持 generic/钉钉/飞书/企微 webhook 外部通知、发送事件台账、重试和请求 payload 脱敏；平台后台工作台/租户详情页可查看最近审计，工作台可导出 CSV、处理开放告警并查看通知渠道/事件摘要；缺更完整筛选 UI、升级策略和运营报表 |

 ## 旧功能中应重新设计的点

--- a/docs/refactor/next-development-todo.md
+++ b/docs/refactor/next-development-todo.md
@@ -11,7 +11,7 @@
 - 学生端核心 API：题库、练习、答题、模考交卷报告、练习历史、学习统计、排行榜、错题复习计划、错题、收藏、背单词、知识手册、分数线、视频播放签名、资料、订单详情/状态轮询、优惠券领取/抵扣、激活码预检查/兑换、权益、个人中心、考试倒计时、签到积分、题目反馈、勋章、站内通知。
 - 租户后台 API：品牌、域名、设置、支付账户、登录 provider、私密密钥、活动、考试日期、题目反馈处理、用户站内通知查看、激活码、优惠券、勋章管理/发放、成员权限、审计、内容管理、班级/教师/学生、学生批量导入、批量分班、学生备注、跟进任务。
 - 租户主题系统：平台默认经典蓝、专注绿、高对比三套模板，租户可保存草稿、发布主题，公开租户解析只返回已发布主题，Taro 租户设置页已接第一版主题操作台。
- 平台后台 API/worker：租户、租户详情、账务资料维护、平台审计日志查询/导出、平台审计告警规则/列表/确认/解决、platform-audit-alerts worker、SaaS 套餐、订阅、订阅账单候选预览/dry-run/批量生成、自动计费 worker、服务费收款、逾期标记、内部催缴台账、用量。
+- 平台后台 API/worker：租户、租户详情、账务资料维护、平台审计日志查询/导出、平台审计告警规则/列表/确认/解决、审计告警外部通知渠道/事件、platform-audit-alerts worker、platform-audit-notifications worker、SaaS 套餐、订阅、订阅账单候选预览/dry-run/批量生成、自动计费 worker、服务费收款、逾期标记、内部催缴台账、用量。
 - 销售/代理/CRM 增长链路：邀请码、扫码事件、首绑保护、团队、统计、CRM 配置/队列、`none/direct/round_robin/referrer` 跟进分配策略、CRM worker、分佣规则、成员比例、订单/激活码归因、结算生成、审核、打款状态、结算导出和凭证复核；Taro 租户营销中心已接 CRM、分佣和优惠券规则/核销报表第一版操作台。
 - 内容导航：`content_entries/content_nodes` 支持任意深度入口和分类。
 - 练习组卷：`question_collections/practice_blueprints` 支持顺序、随机、全真模拟快照。
@@ -35,6 +35,7 @@
 - 平台 SaaS 自动计费 worker 已完成：`apps/worker --job platform-billing` 会按 `WORKER_PLATFORM_BILLING_DAYS_AHEAD` 查找即将到期且未开票的订阅，生成 `tenant_invoices/tenant_invoice_items`，使用订阅行锁和账单查重防重复，写入 `platform.invoice.subscription_auto_created` 审计；`npm run test:worker:platform-billing` 覆盖自动开票、明细、审计和二次运行幂等。
 - 平台 SaaS 逾期催缴 worker 已完成：`apps/worker --job platform-dunning` 会扫描已过 `due_date` 且未结清的服务费账单，标记 `tenant_invoices.status=overdue`、推送租户 `billing_status=past_due`、生成 `tenant_invoice_reminders` 内部催缴记录并写审计；`POST /api/platform-admin/invoices/process-overdue` 支持平台后台 dry-run/执行，`GET /api/platform-admin/invoices/reminders` 支持查看催缴台账；`npm run test:worker:platform-dunning` 覆盖逾期标记、催缴幂等和审计。
 - 平台审计告警 worker 已完成：`apps/worker --job platform-audit-alerts` 会扫描 `platform.%` 审计日志，根据 `platform_audit_alert_rules` 把租户状态变更、账务资料变更、批量开票、逾期处理、手工收款确认、审计导出等高风险平台操作生成内部告警；API 已支持 `/api/platform-admin/audit-alert-rules`、`/api/platform-admin/audit-alerts`、`/api/platform-admin/audit-alerts/status`，Taro 平台工作台可查看开放告警并确认/解决；`npm run test:worker:platform-audit-alerts` 覆盖规则匹配、幂等和敏感 details 脱敏。
+- 平台审计告警外部通知第一版已完成：`platform_audit_notification_channels/events`、`GET/PUT /api/platform-admin/audit-notification-channels`、`GET /api/platform-admin/audit-notification-events` 和 `apps/worker --job platform-audit-notifications` 已接入；支持 generic/钉钉/飞书/企微 webhook、签名密钥 `app_private.platform_secrets`、发送重试、幂等、防重复、payload 脱敏和生产 readiness 阻断 localhost/不安全 webhook。
 - 异常订单运营台和人工调整凭证已完成后端第一版：`/api/commerce/operations/anomalies` 聚合未关闭对账工单、失败官方账单任务、支付事件错误、长时间 pending 支付/退款；`/api/commerce/adjustment-vouchers*` 支持凭证提交、审批、驳回、作废、事件轨迹和复核报表，使用 `tenant:reconciliation:review` 做独立复核权限，且审批凭证不会直接修改订单、支付、退款或权益。
 - 内容资源复检与安全扫描 worker 已完成：`apps/worker --job assets` 可复检 `content_assets` 中的托管对象元数据，并执行内置 `metadata_rules` 和可选外部 HTTP scanner；正常资源写回复检/扫描证据，异常资源自动置为 `failed/skipped + draft` 或 `security_scan_status=failed`，外部 scanner 不可用默认 fail-closed，并写入审计、扫描事件和安全标记。
 - 题库导出 worker 已完成：`apps/worker --job exports` 可抢占 `pdf/docx/daily_practice_zip` 导出任务，渲染 PDF/Word、水印或每日一练图片素材包，写入对象存储或本地开发存储，创建 `content_assets` 并回填 `assetId/hash/size`；`daily_practice` 已支持每日一练九宫格 metadata、PDF/Word 基础版式、9 张 PNG/SVG 卡片和拼图 ZIP。
@@ -188,7 +189,7 @@
 - H5 和小程序共用同一套业务 API client。
 - 租户通过域名、小程序配置或启动参数解析。
 - 页面主题、品牌、功能开关都从后端租户配置读取；学生端和后台只消费 `/api/tenant/resolve` 的已发布 `branding.theme/publicAssets`，租户后台草稿只通过 `/api/tenant-admin/theme` 查看。
- 当前已完成 H5 学生端、租户后台、平台后台三套构建入口和统一 API client；学生端、租户后台、平台后台都有第一批真实 API 页面；学生端已补地区选择、刷题答题卡、后端权威断点续练、本地进度恢复、模拟倒计时、主观题后端自评、阅读理解/案例分析多小题、错题/收藏复习、题目反馈、视频解析、练习/模考报告、个人中心学习报告可视化、会员收银台、订单详情、售后入口、站内消息中心第一版、积分任务/兑换/积分明细第一版、题干/选项/解析/知识手册 RichContent 安全渲染、H5 KaTeX 公式渲染、私有资源 ID 题图短签名渲染、逐题复盘、背单词卡片学习/发音/收藏练习第一版；平台后台已接入创建租户、租户详情、状态变更、账务资料维护、平台审计查询/CSV 导出、开放审计告警展示/确认/解决、订阅、订阅账单候选/dry-run/批量生成、自动计费生成结果查看、收款、用量和公共题库授权第一版写操作；租户后台已接权限驱动工作台、学生运营操作台、主题模板预览/发布、角色模板、成员绑定、CRM/分佣操作台、积分任务/兑换操作台和用户通知查看第一版；下一步补小程序公式真机验收、题图资源字段化、独立消息中心增强、状态管理、更细数据范围 UI、学生批量运营增强和小程序兼容验证。
+- 当前已完成 H5 学生端、租户后台、平台后台三套构建入口和统一 API client；学生端、租户后台、平台后台都有第一批真实 API 页面；学生端已补地区选择、刷题答题卡、后端权威断点续练、本地进度恢复、模拟倒计时、主观题后端自评、阅读理解/案例分析多小题、错题/收藏复习、题目反馈、视频解析、练习/模考报告、个人中心学习报告可视化、会员收银台、订单详情、售后入口、站内消息中心第一版、积分任务/兑换/积分明细第一版、题干/选项/解析/知识手册 RichContent 安全渲染、H5 KaTeX 公式渲染、私有资源 ID 题图短签名渲染、逐题复盘、背单词卡片学习/发音/收藏练习第一版；平台后台已接入创建租户、租户详情、状态变更、账务资料维护、平台审计查询/CSV 导出、开放审计告警展示/确认/解决、审计告警外部通知渠道/事件状态摘要、订阅、订阅账单候选/dry-run/批量生成、自动计费生成结果查看、收款、用量和公共题库授权第一版写操作；租户后台已接权限驱动工作台、学生运营操作台、主题模板预览/发布、角色模板、成员绑定、CRM/分佣操作台、积分任务/兑换操作台和用户通知查看第一版；下一步补小程序公式真机验收、题图资源字段化、独立消息中心增强、状态管理、更细数据范围 UI、学生批量运营增强和小程序兼容验证。

 ### 第一批页面

@@ -241,7 +242,7 @@

 1. 补租户后台写操作台：公共题库采纳/同步、冲突查看、单条/批量冲突采纳平台或保留本地、导入问题、模板预览/下载、上传/粘贴 preview/import、字段映射编辑、异步导入轮询、导入后复检详情、权限驱动工作台、学生创建/更新/批量导入/批量分班/备注/跟进、角色模板配置、成员绑定模板、CRM 配置/队列/跟进分配策略、分佣规则/成员比例/结算生成审核打款/导出/凭证复核已接第一版；继续补成员批量运营、更细数据范围 UI、真实打款 provider 和发票。
 2. 继续补 Taro 学生端旧体验：地区选择、刷题答题卡、后端权威断点续练、本地进度恢复、模拟倒计时、主观题后端自评、阅读理解/案例分析多小题、视频播放、反馈、模考报告、逐题复盘、错题/收藏专题、个人中心学习报告、收银台、订单详情、售后入口、站内消息筛选/已读/归档、积分任务/兑换/积分明细、题干/解析/知识手册 RichContent 安全渲染、H5 KaTeX 公式渲染、私有资源 ID 题图短签名、背单词卡片学习/发音/收藏练习、资料短签名水印预览/下载确认已接第一版；继续补小程序公式真机验收、题图资源字段化、独立消息中心增强、背单词更细统计、小程序支付容器、分享场景和状态管理。
-3. 补平台后台增强：租户基础资料编辑增强、平台审计告警外部通知/升级策略、外部催缴通知、平台在线收款和更细平台权限点。
+3. 补平台后台增强：租户基础资料编辑增强、平台审计告警升级策略、外部催缴通知、平台在线收款和更细平台权限点。
 4. 云服务器部署 Supabase/PostgreSQL 和 API，配置对象存储生产环境变量，跑 `check:refactor` 的远程等价测试。
 5. 导出现有 PocketBase 数据，按 `docs/refactor/pocketbase-real-data-migration-runbook.md` 做 production dry-run、导入演练、校验和抽样验收。
 6. 并行补真实登录、真实生产账单格式验收、异常订单运营台、对象存储真实 AV/内容安全服务联调、转码/CDN 级水印/生命周期、题库导出模板精排/操作台、公共题库生产定时调度和失败告警。
--- a/docs/refactor/taro-frontend-integration.md
+++ b/docs/refactor/taro-frontend-integration.md
@@ -2519,7 +2519,7 @@ src/services/ai.ts         AI 择校推荐生成、报告列表、报告详情
 src/services/pronunciation.ts H5/小程序单词发音适配
 src/services/tenantAdmin.ts 租户后台看板、权限矩阵、成员、学生创建/批量导入/分班/备注/跟进、内容、营销、设置、角色模板写操作、公共题库采纳/同步/单条和批量冲突处理、导入详情/复检、CRM 配置/队列、分佣规则/成员比例/订单/结算、优惠券规则/核销报表、积分任务/兑换配置和记录
 src/services/tenantFinance.ts 租户财务运营：退款状态机、官方账单任务、对账批次/明细、差错工单、异常订单和人工调整凭证
-src/services/platformAdmin.ts 平台后台租户、租户详情、账务资料、平台审计查询/CSV 导出、平台审计告警规则/列表/状态更新、套餐账单、订阅账单候选/dry-run/批量生成、自动计费生成结果查看、逾期预览/内部催缴记录、用量、公共题库授权
+src/services/platformAdmin.ts 平台后台租户、租户详情、账务资料、平台审计查询/CSV 导出、平台审计告警规则/列表/状态更新、审计告警外部通知渠道/发送事件、套餐账单、订阅账单候选/dry-run/批量生成、自动计费生成结果查看、逾期预览/内部催缴记录、用量、公共题库授权
 ```

 验证命令：
@@ -2598,7 +2598,7 @@ format       csv | json

 ## 平台审计告警

-平台审计告警属于超级管理员后台能力，第一版只做内部告警台账和平台后台处理，不发送短信、企业微信、钉钉或飞书外部通知。告警由 `apps/worker --job platform-audit-alerts` 根据 `platform_audit_alert_rules` 从平台审计日志生成，前端不要直接读写 Supabase 表。
+平台审计告警属于超级管理员后台能力。内部告警由 `apps/worker --job platform-audit-alerts` 根据 `platform_audit_alert_rules` 从平台审计日志生成，外部通知由 `apps/worker --job platform-audit-notifications` 根据 `platform_audit_notification_channels` 入队并发送到 generic、钉钉、飞书或企业微信 webhook。前端不要直接读写 Supabase 表。

 查询启用规则：

@@ -2643,7 +2643,72 @@ Content-Type: application/json
 - 只允许平台管理员调用，普通学生、租户管理员和租户成员会返回 `PLATFORM_ADMIN_REQUIRED`。
 - 后端会对告警 `details` 递归脱敏 token、secret、password、key、authorization、cookie、session、cert、signature 等敏感字段；前端仍不要把 details 原样写入日志或埋点。
 - 确认、解决和忽略都会写入 `platform.audit.alert_status_updated` 审计。
- 当前工作台只展示开放告警并提供“确认/解决”按钮；更完整筛选、批量处理、外部通知和升级策略属于下一阶段。
+- 当前工作台展示开放告警并提供“确认/解决”按钮，同时展示已启用外部通知渠道和最近发送事件摘要；更完整筛选、批量处理和升级策略属于下一阶段。
+
+### 平台审计告警外部通知
+
+查询通知渠道：
+
+```text
+GET /api/platform-admin/audit-notification-channels?enabled=true&limit=50
+```
+
+渠道响应不会返回原始 `webhookUrl`，只返回安全摘要：
+
+```json
+{
+  "items": [
+    {
+      "id": "...",
+      "channelCode": "security_ops",
+      "name": "安全值班群",
+      "enabled": true,
+      "provider": "wecom",
+      "secretRef": "app_private.platform_secrets:webhook:security_ops",
+      "minSeverity": "high",
+      "statusFilter": ["open"],
+      "actionPatterns": ["platform.*"],
+      "webhook": {
+        "protocol": "https",
+        "host": "qyapi.weixin.qq.com",
+        "pathname": "/cgi-bin/webhook/send"
+      }
+    }
+  ]
+}
+```
+
+保存通知渠道：
+
+```http
+PUT /api/platform-admin/audit-notification-channels
+Content-Type: application/json
+
+{
+  "channelCode": "security_ops",
+  "name": "安全值班群",
+  "provider": "wecom",
+  "webhookUrl": "https://qyapi.weixin.qq.com/cgi-bin/webhook/send?key=...",
+  "secret": "optional-signing-secret",
+  "minSeverity": "high",
+  "statusFilter": ["open"],
+  "actionPatterns": ["platform.*"],
+  "timeoutSec": 10
+}
+```
+
+查询发送事件：
+
+```text
+GET /api/platform-admin/audit-notification-events?status=failed&limit=50
+```
+
+前端安全边界：
+
+- `secret` 只允许在保存渠道时一次性提交给后端，后端写入 `app_private.platform_secrets`；页面、日志、状态管理和本地缓存都不能保存原文。
+- API 响应只展示 `secretRef`、webhook host/path、发送状态、HTTP code 和脱敏后的 request payload。前端不要自行拼 webhook 请求。
+- 生产环境 readiness 会阻断启用的非 HTTPS webhook、localhost webhook，以及缺少平台私密 secret 的钉钉/飞书签名渠道。
+- 小程序端平台后台如果后续开放，只建议做查看和告警处理；通知渠道配置建议优先放在 H5 平台后台完成。

 ## 平台账务逾期催缴

@@ -2702,7 +2767,7 @@ GET /api/platform-admin/invoices/reminders?tenantId=<tenantId>&invoiceId=<invoic

 - 学生端：地区选择、题目视频播放、题目反馈、错题/收藏专题页、模考交卷报告、收银台、订单详情、售后入口、题干/解析/知识手册 RichContent 安全渲染、逐题复盘、背单词卡片学习/发音/收藏练习、资料短签名水印预览/下载确认、个人中心消息中心、积分任务、积分兑换和积分明细第一版已接；下一批继续补独立消息中心增强、真正 KaTeX/小程序公式方案、私有题图签名资源映射、背单词更细统计、小程序支付容器和分享场景。
 - 租户后台：工作台已接权限驱动模块入口；学生运营页已接学生创建/更新、禁用/恢复、批量导入、批量分班、学生备注、跟进任务和完成跟进第一版；题库内容页已接公共题库采纳/同步、冲突查看、单条/批量采纳平台或保留本地、导入问题、模板预览/下载、异步任务轮询和导入后复检第一版；营销中心已接 CRM 配置保存、CRM 队列按状态查看、分佣默认规则、成员分佣比例、分佣订单明细、结算单生成、审核通过/驳回、标记线下打款、优惠券规则表单、筛选、核销明细、核销报表、积分任务/兑换操作台和用户通知查看第一版；财务运营页已接退款申请/审核/供应商提交与查询、官方账单任务、对账批次/异常明细、差错工单处理、人工调整凭证提交/复核和异常订单运营台第一版；租户设置页已接主题模板、草稿预览、发布、角色模板创建、编辑、停用、权限点、菜单、模块、字段、基础数据范围、成员搜索/新建、成员绑定模板、成员状态和额外权限覆盖第一版；下一批继续补更精细的学生导入模板体验、真实生产账单抽样验收、真实打款 provider、发票、更细数据范围 UI 和主题素材库。
- 平台后台：租户创建、租户详情、状态变更、账务资料维护、最近平台审计查询/CSV 导出、开放审计告警展示/确认/解决、订阅开通、账单生成、订阅账单候选预览、dry-run、批量生成、自动计费生成结果查看、人工收款确认、逾期预览、内部催缴生成、催缴记录查看、用量录入、公共题库授权编辑已接第一版；后端会跳过已开票订阅并记录 `platform.invoice.subscription_batch_created` 审计，`platform-billing` worker 会自动生成即将到期订阅账单并记录 `platform.invoice.subscription_auto_created` 审计，`platform-dunning` worker 会标记已过期未结清服务费账单、生成 `tenant_invoice_reminders` 并记录 `platform.invoice.overdue_processed` 审计，`platform-audit-alerts` worker 会把高风险平台审计动作转换为内部告警；前端只展示候选、预览结果、跳过结果、逾期处理结果、开放告警和生成后的账单/审计，不要直接更新账单状态、租户 `billing_status` 或告警表；继续补租户基础资料编辑增强、平台审计告警外部通知/升级策略、外部催缴通知和平台在线收款。
+- 平台后台：租户创建、租户详情、状态变更、账务资料维护、最近平台审计查询/CSV 导出、开放审计告警展示/确认/解决、审计告警外部通知渠道/事件状态摘要、订阅开通、账单生成、订阅账单候选预览、dry-run、批量生成、自动计费生成结果查看、人工收款确认、逾期预览、内部催缴生成、催缴记录查看、用量录入、公共题库授权编辑已接第一版；后端会跳过已开票订阅并记录 `platform.invoice.subscription_batch_created` 审计，`platform-billing` worker 会自动生成即将到期订阅账单并记录 `platform.invoice.subscription_auto_created` 审计，`platform-dunning` worker 会标记已过期未结清服务费账单、生成 `tenant_invoice_reminders` 并记录 `platform.invoice.overdue_processed` 审计，`platform-audit-alerts` worker 会把高风险平台审计动作转换为内部告警，`platform-audit-notifications` worker 会把开放告警按渠道发送外部通知；前端只展示候选、预览结果、跳过结果、逾期处理结果、开放告警、通知事件和生成后的账单/审计，不要直接更新账单状态、租户 `billing_status`、告警表或通知事件表；继续补租户基础资料编辑增强、平台审计告警升级策略、外部催缴通知和平台在线收款。
 - 小程序：验证 `Taro.login`、微信支付、分享 scene/referral、Supabase client 兼容性；如不稳定，保留 `apps/api/auth/*` 作为小程序登录适配层。

 ## AI 择校推荐接入
--- a/package.json
+++ b/package.json
@@ -42,6 +42,7 @@
    "test:worker:platform-billing": "npm run db:smoke-seed && npm run build:worker && node scripts/platform-billing-worker-integration-test.js",
    "test:worker:platform-dunning": "npm run db:smoke-seed && npm run build:worker && node scripts/platform-dunning-worker-integration-test.js",
    "test:worker:platform-audit-alerts": "npm run db:smoke-seed && npm run build:worker && node scripts/platform-audit-alert-worker-integration-test.js",
+    "test:worker:platform-audit-notifications": "npm run db:smoke-seed && npm run build:worker && node scripts/platform-audit-notification-worker-integration-test.js",
    "test:worker:assets": "npm run db:smoke-seed && npm run build:worker && node scripts/asset-worker-integration-test.js",
    "test:worker:exports": "npm run db:smoke-seed && npm run build:worker && node scripts/export-worker-integration-test.js",
    "test:worker:imports": "npm run db:smoke-seed && npm run build:worker && node scripts/import-worker-integration-test.js",
--- a/scripts/api-integration-test.js
+++ b/scripts/api-integration-test.js
@@ -1341,6 +1341,105 @@ async function testPlatformTenantOperationsAndAudit() {
  });
  assert.equal(invalidAuditAlertStatus.code, 'INVALID_ALERT_STATUS', 'audit alerts should not be reopened through status endpoint');

+  const notificationChannel = await request('/api/platform-admin/audit-notification-channels', {
+    tenantId: false,
+    userId: false,
+    headers: adminHeaders,
+    method: 'PUT',
+    body: {
+      channelCode: 'integration_platform_audit',
+      name: '集成测试平台审计通知',
+      provider: 'generic',
+      webhookUrl: 'https://ops.example.test/platform-audit',
+      secret: 'integration-platform-audit-notification-secret',
+      minSeverity: 'medium',
+      statusFilter: ['open'],
+      actionPatterns: ['platform.tenant.*'],
+      tenantIds: [tenantId],
+      timeoutSec: 5,
+      metadata: { owner: 'security' },
+    },
+  });
+  assert.equal(notificationChannel.item?.channelCode, 'integration_platform_audit', 'platform admin should upsert audit notification channel');
+  assert.equal(notificationChannel.item?.secretRef, 'app_private.platform_secrets:webhook:integration_platform_audit', 'channel should expose only platform secretRef');
+  assert.equal(notificationChannel.item?.webhook?.host, 'ops.example.test', 'channel response should expose safe webhook host');
+  assert.equal(notificationChannel.item?.webhookUrl, undefined, 'channel response must not expose raw webhook URL');
+  assert.ok(!JSON.stringify(notificationChannel).includes('integration-platform-audit-notification-secret'), 'channel response must not leak webhook secret');
+
+  const notificationChannels = await request('/api/platform-admin/audit-notification-channels', {
+    tenantId: false,
+    userId: false,
+    headers: adminHeaders,
+    query: { enabled: true, provider: 'generic', limit: 20 },
+  });
+  assert.ok(
+    notificationChannels.items?.some(item => item.channelCode === 'integration_platform_audit'),
+    'platform admin should list audit notification channels',
+  );
+  assert.ok(!JSON.stringify(notificationChannels).includes('integration-platform-audit-notification-secret'), 'channel list must not leak webhook secret');
+
+  const invalidNotificationChannel = await request('/api/platform-admin/audit-notification-channels', {
+    tenantId: false,
+    userId: false,
+    headers: adminHeaders,
+    method: 'PUT',
+    body: {
+      channelCode: 'bad_channel',
+      name: 'bad channel',
+      provider: 'generic',
+      webhookUrl: 'ftp://ops.example.test/hook',
+    },
+    expectStatus: 400,
+  });
+  assert.equal(invalidNotificationChannel.code, 'INVALID_WEBHOOK_URL', 'audit notification channel should reject unsafe webhook URL');
+
+  const eventPool = new pg.Pool({ connectionString: process.env.DATABASE_URL || DEFAULT_DATABASE_URL });
+  let platformNotificationEventId = '';
+  try {
+    const channelRow = await eventPool.query(
+      "select id from public.platform_audit_notification_channels where channel_code = 'integration_platform_audit' limit 1",
+    );
+    const insertedEvent = await eventPool.query(
+      `
+      insert into public.platform_audit_notification_events (
+        channel_id, alert_id, audit_log_id, provider, status, attempts,
+        last_http_code, request_payload, last_response_summary
+      )
+      values (
+        $1, $2, $3, 'generic', 'sent', 1,
+        200,
+        '{"body":{"token":"must-not-leak","nested":{"password":"must-not-leak"}}}'::jsonb,
+        '{"ok":true}'
+      )
+      on conflict (channel_id, alert_id)
+      do update set status = excluded.status,
+                    attempts = excluded.attempts,
+                    request_payload = excluded.request_payload,
+                    updated_at = now()
+      returning id
+      `,
+      [channelRow.rows[0].id, platformAlertId, statusAuditLog.id],
+    );
+    platformNotificationEventId = insertedEvent.rows[0].id;
+  } finally {
+    await eventPool.end();
+  }
+
+  const notificationEvents = await request('/api/platform-admin/audit-notification-events', {
+    tenantId: false,
+    userId: false,
+    headers: adminHeaders,
+    query: { alertId: platformAlertId, status: 'sent', limit: 20 },
+  });
+  assert.ok(
+    notificationEvents.items?.some(item => item.id === platformNotificationEventId),
+    'platform admin should list audit notification events',
+  );
+  const listedNotificationEvent = notificationEvents.items?.find(item => item.id === platformNotificationEventId);
+  assert.equal(listedNotificationEvent?.requestPayload?.body?.token, '[REDACTED]', 'notification event list should redact token-like payload details');
+  assert.equal(listedNotificationEvent?.requestPayload?.body?.nested?.password, '[REDACTED]', 'notification event list should redact nested password-like payload details');
+  assert.ok(!JSON.stringify(notificationEvents).includes('must-not-leak'), 'notification event list must not leak sensitive details');
+
  const candidates = await request('/api/platform-admin/invoices/subscription-candidates', {
    tenantId: false,
    userId: false,
@@ -1555,6 +1654,20 @@ async function testPlatformTenantOperationsAndAudit() {
  });
  assert.equal(studentAuditAlertStatusDenied.code, 'PLATFORM_ADMIN_REQUIRED', 'student must not update platform audit alerts');

+  const studentAuditNotificationChannelDenied = await request('/api/platform-admin/audit-notification-channels', {
+    tenantId: false,
+    userId: USER_ID,
+    expectStatus: 403,
+  });
+  assert.equal(studentAuditNotificationChannelDenied.code, 'PLATFORM_ADMIN_REQUIRED', 'student must not read platform audit notification channels');
+
+  const studentAuditNotificationEventDenied = await request('/api/platform-admin/audit-notification-events', {
+    tenantId: false,
+    userId: USER_ID,
+    expectStatus: 403,
+  });
+  assert.equal(studentAuditNotificationEventDenied.code, 'PLATFORM_ADMIN_REQUIRED', 'student must not read platform audit notification events');
+
  const studentReminderDenied = await request('/api/platform-admin/invoices/reminders', {
    tenantId: false,
    userId: USER_ID,
--- a/scripts/platform-audit-notification-worker-integration-test.js
+++ b/scripts/platform-audit-notification-worker-integration-test.js
@@ -0,0 +1,222 @@
+import assert from 'node:assert/strict';
+import http from 'node:http';
+import pg from 'pg';
+import { spawn } from 'node:child_process';
+
+const databaseUrl = process.env.DATABASE_URL || 'postgresql://postgres:postgres@127.0.0.1:54322/postgres';
+
+const ids = {
+  tenant: '00000000-0000-0000-0000-00000000ab01',
+  auditLog: '00000000-0000-0000-0000-00000000ab02',
+  alert: '00000000-0000-0000-0000-00000000ab03',
+};
+
+function getFreePort() {
+  return new Promise((resolve, reject) => {
+    const server = http.createServer();
+    server.listen(0, '127.0.0.1', () => {
+      const address = server.address();
+      server.close(() => resolve(address.port));
+    });
+    server.on('error', reject);
+  });
+}
+
+async function startWebhookServer() {
+  const port = await getFreePort();
+  const requests = [];
+  const server = http.createServer((req, res) => {
+    let raw = '';
+    req.on('data', chunk => {
+      raw += chunk.toString();
+    });
+    req.on('end', () => {
+      requests.push({
+        url: req.url,
+        headers: req.headers,
+        body: raw ? JSON.parse(raw) : {},
+      });
+      res.writeHead(200, { 'content-type': 'application/json' });
+      res.end(JSON.stringify({ ok: true }));
+    });
+  });
+  await new Promise(resolve => server.listen(port, '127.0.0.1', resolve));
+  return {
+    url: `http://127.0.0.1:${port}/platform-audit`,
+    requests,
+    close: () => new Promise(resolve => server.close(resolve)),
+  };
+}
+
+function runWorkerOnce() {
+  const child = spawn(process.execPath, ['apps/worker/dist/apps/worker/src/index.js', '--once', '--job', 'platform-audit-notifications'], {
+    cwd: process.cwd(),
+    env: {
+      ...process.env,
+      DATABASE_URL: databaseUrl,
+      WORKER_PLATFORM_AUDIT_NOTIFICATION_BATCH_SIZE: '20',
+      WORKER_PLATFORM_AUDIT_NOTIFICATION_ALLOW_INSECURE_LOCALHOST: 'true',
+      WORKER_PLATFORM_AUDIT_NOTIFICATION_REQUEST_TIMEOUT_MS: '5000',
+    },
+    stdio: ['ignore', 'pipe', 'pipe'],
+    windowsHide: true,
+  });
+  let output = '';
+  child.stdout.on('data', chunk => {
+    output += chunk.toString();
+  });
+  child.stderr.on('data', chunk => {
+    output += chunk.toString();
+  });
+  return new Promise((resolve, reject) => {
+    child.on('error', reject);
+    child.on('exit', code => {
+      try {
+        assert.equal(code, 0, `worker should exit 0\n${output}`);
+        assert.match(output, /platform-audit-notifications batch enqueued=\d+/, 'worker output should include notification summary');
+        resolve(output);
+      } catch (error) {
+        reject(error);
+      }
+    });
+  });
+}
+
+async function cleanup(pool) {
+  await pool.query("delete from public.platform_audit_notification_events where alert_id = $1", [ids.alert]);
+  await pool.query("delete from public.platform_audit_notification_channels where channel_code = 'worker_platform_audit_test'");
+  await pool.query("delete from app_private.platform_secrets where secret_scope = 'webhook' and secret_key = 'worker_platform_audit_test'");
+  await pool.query('delete from public.platform_audit_alerts where id = $1 or audit_log_id = $2', [ids.alert, ids.auditLog]);
+  await pool.query('delete from public.audit_logs where id = $1 or tenant_id = $2', [ids.auditLog, ids.tenant]);
+  await pool.query('delete from public.tenant_billing_profiles where tenant_id = $1', [ids.tenant]);
+  await pool.query('delete from public.tenant_domains where tenant_id = $1', [ids.tenant]);
+  await pool.query('delete from public.tenants where id = $1', [ids.tenant]);
+}
+
+async function seed(pool, webhookUrl) {
+  await pool.query(
+    `
+    insert into public.tenants (id, slug, name, legal_name, status, mode, billing_status, metadata)
+    values ($1, 'platform-audit-notification-worker', '平台审计通知租户', '平台审计通知有限公司', 'active', 'saas', 'active', '{"source":"platform-audit-notification-worker-test"}'::jsonb)
+    `,
+    [ids.tenant],
+  );
+  await pool.query(
+    `
+    insert into public.audit_logs (
+      id, tenant_id, actor_user_id, action, target_type, target_id,
+      details, ip_address, user_agent, created_at
+    )
+    values (
+      $1, $2::uuid, null, 'platform.tenant.status_updated', 'tenant', $3,
+      '{"status":"suspended","apiKey":"must-not-leak","nested":{"password":"must-not-leak"}}'::jsonb,
+      '127.0.0.1', 'platform-audit-notification-worker-test', now()
+    )
+    `,
+    [ids.auditLog, ids.tenant, ids.tenant],
+  );
+  const rule = await pool.query("select id from public.platform_audit_alert_rules where code = 'platform_tenant_status_changed' limit 1");
+  await pool.query(
+    `
+    insert into public.platform_audit_alerts (
+      id, rule_id, audit_log_id, tenant_id, severity, status,
+      action, target_type, target_id, title, summary, details,
+      first_seen_at, last_seen_at
+    )
+    values (
+      $1, $2, $3, $4::uuid, 'high', 'open',
+      'platform.tenant.status_updated', 'tenant', $4,
+      '租户状态变更告警', 'platform audit notification integration alert',
+      '{"source":"worker-test","apiKey":"must-not-leak","nested":{"password":"must-not-leak"}}'::jsonb,
+      now(), now()
+    )
+    `,
+    [ids.alert, rule.rows[0].id, ids.auditLog, ids.tenant],
+  );
+  await pool.query(
+    `
+    insert into app_private.platform_secrets (secret_scope, secret_key, secret_value, provider, last_rotated_at)
+    values ('webhook', 'worker_platform_audit_test', 'platform-audit-notification-secret', 'generic', now())
+    on conflict (secret_scope, secret_key)
+    do update set secret_value = excluded.secret_value,
+                  provider = excluded.provider,
+                  last_rotated_at = now(),
+                  updated_at = now()
+    `,
+  );
+  await pool.query(
+    `
+    insert into public.platform_audit_notification_channels (
+      channel_code, name, enabled, provider, webhook_url, secret_ref,
+      min_severity, status_filter, action_patterns, timeout_sec
+    )
+    values (
+      'worker_platform_audit_test', 'Worker 平台审计通知', true, 'generic',
+      $1, 'app_private.platform_secrets:webhook:worker_platform_audit_test',
+      'medium', array['open']::text[], array['platform.tenant.*']::text[], 5
+    )
+    on conflict (channel_code)
+    do update set enabled = excluded.enabled,
+                  provider = excluded.provider,
+                  webhook_url = excluded.webhook_url,
+                  secret_ref = excluded.secret_ref,
+                  min_severity = excluded.min_severity,
+                  status_filter = excluded.status_filter,
+                  action_patterns = excluded.action_patterns,
+                  timeout_sec = excluded.timeout_sec,
+                  updated_at = now()
+    `,
+    [webhookUrl],
+  );
+}
+
+async function main() {
+  const webhook = await startWebhookServer();
+  const pool = new pg.Pool({ connectionString: databaseUrl });
+  try {
+    await cleanup(pool);
+    await seed(pool, webhook.url);
+
+    const firstOutput = await runWorkerOnce();
+    assert.match(firstOutput, /sent=1/, 'worker should send one platform audit notification');
+    assert.equal(webhook.requests.length, 1, 'worker should call webhook exactly once');
+    assert.equal(webhook.requests[0].body.event, 'platform.audit.alert', 'generic notification should use platform audit event name');
+    assert.equal(webhook.requests[0].body.alert.id, ids.alert, 'webhook body should include alert id');
+    assert.equal(webhook.requests[0].body.alert.details.apiKey, '[REDACTED]', 'webhook body should redact token-like keys');
+    assert.equal(webhook.requests[0].body.alert.details.nested.password, '[REDACTED]', 'webhook body should redact nested password');
+    assert.ok(!JSON.stringify(webhook.requests[0]).includes('must-not-leak'), 'webhook request must not leak sensitive values');
+    assert.ok(!JSON.stringify(webhook.requests[0]).includes('platform-audit-notification-secret'), 'webhook request must not leak signing secret');
+
+    const events = await pool.query(
+      `
+      select status, attempts, last_http_code, sent_at, request_payload
+      from public.platform_audit_notification_events
+      where alert_id = $1
+      limit 1
+      `,
+      [ids.alert],
+    );
+    assert.equal(events.rowCount, 1, 'worker should create one notification event');
+    assert.equal(events.rows[0].status, 'sent', 'notification event should be sent');
+    assert.equal(events.rows[0].attempts, 1, 'notification event should record one attempt');
+    assert.equal(events.rows[0].last_http_code, 200, 'notification event should record HTTP 200');
+    assert.ok(events.rows[0].sent_at, 'notification event should record sent_at');
+    assert.ok(!JSON.stringify(events.rows[0].request_payload).includes('must-not-leak'), 'stored request payload should be redacted');
+    assert.ok(!JSON.stringify(events.rows[0].request_payload).includes('platform-audit-notification-secret'), 'stored request payload should not leak secret');
+
+    const secondOutput = await runWorkerOnce();
+    assert.match(secondOutput, /sent=0/, 'second worker run should not resend sent notification');
+    assert.equal(webhook.requests.length, 1, 'worker should not duplicate sent notification');
+
+    console.log('Platform audit notification worker integration test complete.');
+  } finally {
+    await cleanup(pool).catch(() => {});
+    await pool.end();
+    await webhook.close();
+  }
+}
+
+main().catch(error => {
+  console.error(error);
+  process.exit(1);
+});
--- a/scripts/production-config-failfast-test.js
+++ b/scripts/production-config-failfast-test.js
@@ -20,6 +20,7 @@ const safeBaseEnv = {
  WORKER_ASSET_SECURITY_SCAN_HTTP_ENDPOINT: 'https://scanner.gongxue100.com/api/scan',
  WORKER_ASSET_SECURITY_SCAN_HTTP_TOKEN: 's3cure-asset-scanner-token-2026-06-30-abcdef',
  WORKER_ASSET_SECURITY_SCAN_FAIL_OPEN: 'false',
+  WORKER_PLATFORM_AUDIT_NOTIFICATION_ALLOW_INSECURE_LOCALHOST: 'false',
 };

 const safeApiEnv = {
@@ -78,6 +79,17 @@ const unsafeWorkerScanner = runImport(workerConfigUrl, {
 assert.notEqual(unsafeWorkerScanner.status, 0, 'production worker config should require external scanner');
 assert.match(unsafeWorkerScanner.output, /WORKER_ASSET_SECURITY_SCANNER must include http/, 'worker config should require http scanner');

+const unsafeWorkerPlatformAuditNotification = runImport(workerConfigUrl, {
+  ...safeBaseEnv,
+  WORKER_PLATFORM_AUDIT_NOTIFICATION_ALLOW_INSECURE_LOCALHOST: 'true',
+});
+assert.notEqual(unsafeWorkerPlatformAuditNotification.status, 0, 'production worker config should reject platform audit notification localhost mode');
+assert.match(
+  unsafeWorkerPlatformAuditNotification.output,
+  /WORKER_PLATFORM_AUDIT_NOTIFICATION_ALLOW_INSECURE_LOCALHOST=true/,
+  'worker config should name unsafe platform audit notification localhost mode',
+);
+
 const safeWorker = runImport(workerConfigUrl, safeBaseEnv);
 assert.equal(safeWorker.status, 0, `safe production worker config should load: ${safeWorker.output}`);

--- a/scripts/production-readiness-check-test.js
+++ b/scripts/production-readiness-check-test.js
@@ -79,6 +79,7 @@ WORKER_ASSET_SECURITY_SCAN_HTTP_TOKEN=s3cure-asset-scanner-token-2026-06-29-stuv
 WORKER_ASSET_SECURITY_SCAN_HTTP_TIMEOUT_MS=10000
 WORKER_ASSET_SECURITY_SCAN_FAIL_OPEN=false
 WORKER_CRM_ALLOW_INSECURE_LOCALHOST=false
+WORKER_PLATFORM_AUDIT_NOTIFICATION_ALLOW_INSECURE_LOCALHOST=false
 WORKER_CRM_BATCH_SIZE=20
 WORKER_COMMERCE_BATCH_SIZE=20
 WORKER_ASSET_BATCH_SIZE=50
@@ -115,6 +116,7 @@ WORKER_ASSET_SECURITY_SCANNER=metadata_rules,http
 WORKER_ASSET_SECURITY_SCAN_HTTP_ENDPOINT=https://scanner.gongxue100.com/api/scan
 WORKER_ASSET_SECURITY_SCAN_HTTP_TOKEN=s3cure-asset-scanner-token-2026-06-29-stuvwx
 WORKER_ASSET_SECURITY_SCAN_FAIL_OPEN=false
+WORKER_PLATFORM_AUDIT_NOTIFICATION_ALLOW_INSECURE_LOCALHOST=false
 `);

 assert.notEqual(missingJwksIssuer.status, 0, 'JWKS readiness without issuer should fail');
@@ -123,4 +125,36 @@ assert.ok(
  'JWKS readiness should block missing AUTH_JWT_ISSUER',
 );

+const unsafePlatformAuditNotificationLocalhost = runReadiness(`
+NODE_ENV=production
+DATABASE_URL=postgresql://prod_user:prod_password@db.prod.internal:5432/tiku
+CORS_ORIGIN=https://student.gongxue100.com
+AUTH_SMS_PROVIDER=aliyun
+AUTH_CODE_PEPPER=${strongSecretA}
+AUTH_SESSION_SECRET=${strongSecretB}
+AUTH_JWT_JWKS_URL=https://auth.gongxue100.com/auth/v1/.well-known/jwks.json
+AUTH_JWT_ISSUER=https://auth.gongxue100.com/auth/v1
+ALLOW_LEGACY_AUTH_HEADERS=false
+ALLOW_PLATFORM_ADMIN_KEY=false
+PLATFORM_ADMIN_API_KEY=${strongSecretC}
+STORAGE_DEFAULT_PROVIDER=aliyun_oss
+STORAGE_DEFAULT_BUCKET=tiku-assets
+STORAGE_REQUIRE_TENANT_PREFIX=true
+ALIYUN_OSS_REGION=cn-hangzhou
+ALIYUN_OSS_ENDPOINT=https://oss-cn-hangzhou.aliyuncs.com
+ALIYUN_OSS_ACCESS_KEY_ID=LTAI_READINESS_TEST_ONLY
+ALIYUN_OSS_ACCESS_KEY_SECRET=aliyun-readiness-secret-placeholder
+WORKER_ASSET_SECURITY_SCANNER=metadata_rules,http
+WORKER_ASSET_SECURITY_SCAN_HTTP_ENDPOINT=https://scanner.gongxue100.com/api/scan
+WORKER_ASSET_SECURITY_SCAN_HTTP_TOKEN=s3cure-asset-scanner-token-2026-06-29-stuvwx
+WORKER_ASSET_SECURITY_SCAN_FAIL_OPEN=false
+WORKER_PLATFORM_AUDIT_NOTIFICATION_ALLOW_INSECURE_LOCALHOST=true
+`);
+
+assert.notEqual(unsafePlatformAuditNotificationLocalhost.status, 0, 'platform audit notification localhost readiness should fail');
+assert.ok(
+  unsafePlatformAuditNotificationLocalhost.payload.checks?.some(item => item.id === 'env.worker_platform_audit_notification_insecure_localhost' && item.status === 'blocker'),
+  'readiness should block platform audit notification localhost mode in production',
+);
+
 console.log('[PASS] production readiness check script');
--- a/scripts/production-readiness-check.js
+++ b/scripts/production-readiness-check.js
@@ -321,11 +321,17 @@ function validateEnv() {
    pass('env.asset_security_scan_fail_open', 'asset security scanning fails closed');
  }

-  if (envBool('WORKER_CRM_ALLOW_INSECURE_LOCALHOST', false)) {
-    block('env.worker_crm_insecure_localhost', 'WORKER_CRM_ALLOW_INSECURE_LOCALHOST must be false in production');
-  } else {
-    pass('env.worker_crm_insecure_localhost', 'CRM worker insecure localhost webhook mode is disabled');
-  }
+    if (envBool('WORKER_CRM_ALLOW_INSECURE_LOCALHOST', false)) {
+      block('env.worker_crm_insecure_localhost', 'WORKER_CRM_ALLOW_INSECURE_LOCALHOST must be false in production');
+    } else {
+      pass('env.worker_crm_insecure_localhost', 'CRM worker insecure localhost webhook mode is disabled');
+    }
+
+    if (envBool('WORKER_PLATFORM_AUDIT_NOTIFICATION_ALLOW_INSECURE_LOCALHOST', false)) {
+      block('env.worker_platform_audit_notification_insecure_localhost', 'WORKER_PLATFORM_AUDIT_NOTIFICATION_ALLOW_INSECURE_LOCALHOST must be false in production');
+    } else {
+      pass('env.worker_platform_audit_notification_insecure_localhost', 'Platform audit notification worker insecure localhost webhook mode is disabled');
+    }

  const requiredPositiveNumbers = [
    'WORKER_CRM_BATCH_SIZE',
@@ -419,6 +425,51 @@ async function validateDatabase() {
      pass('db.payment_provider_secrets', 'Active payment accounts have private secret rows');
    }

+    const unsafePlatformAuditNotificationRows = await pool.query(`
+      select id, channel_code, provider, webhook_url
+      from public.platform_audit_notification_channels
+      where enabled = true
+        and (
+          webhook_url !~* '^https://'
+          or webhook_url ~* '^https?://(localhost|127\\.0\\.0\\.1|\\[?::1\\]?)'
+        )
+    `);
+    if (unsafePlatformAuditNotificationRows.rowCount > 0) {
+      block('db.platform_audit_notification_webhooks', 'Enabled platform audit notification webhooks must use production HTTPS URLs', {
+        count: unsafePlatformAuditNotificationRows.rowCount,
+        samples: unsafePlatformAuditNotificationRows.rows.slice(0, 5).map(row => ({
+          id: row.id,
+          channelCode: row.channel_code,
+          provider: row.provider,
+        })),
+      });
+    } else {
+      pass('db.platform_audit_notification_webhooks', 'Enabled platform audit notification webhooks use production HTTPS URLs');
+    }
+
+    const missingPlatformAuditNotificationSecretRows = await pool.query(`
+      select c.id, c.channel_code, c.provider, c.secret_ref
+      from public.platform_audit_notification_channels c
+      left join app_private.platform_secrets s
+        on s.secret_scope = split_part(c.secret_ref, ':', 2)
+       and s.secret_key = split_part(c.secret_ref, ':', 3)
+      where c.enabled = true
+        and c.provider in ('dingtalk', 'feishu')
+        and (c.secret_ref is null or c.secret_ref !~ '^app_private\\.platform_secrets:' or s.id is null)
+    `);
+    if (missingPlatformAuditNotificationSecretRows.rowCount > 0) {
+      block('db.platform_audit_notification_secrets', 'Signed platform audit notification channels require app_private.platform_secrets rows', {
+        count: missingPlatformAuditNotificationSecretRows.rowCount,
+        samples: missingPlatformAuditNotificationSecretRows.rows.slice(0, 5).map(row => ({
+          id: row.id,
+          channelCode: row.channel_code,
+          provider: row.provider,
+        })),
+      });
+    } else {
+      pass('db.platform_audit_notification_secrets', 'Signed platform audit notification channels have private secret rows');
+    }
+
    const unverifiedDomainRows = await pool.query(`
      select count(*)::int as count
      from public.tenant_domains
--- a/supabase/migrations/202606300003_platform_audit_alert_notifications.sql
+++ b/supabase/migrations/202606300003_platform_audit_alert_notifications.sql
@@ -0,0 +1,114 @@
+create table if not exists app_private.platform_secrets (
+  id uuid primary key default gen_random_uuid(),
+  secret_scope text not null check (secret_scope in ('webhook', 'sms', 'email', 'payment', 'system', 'ai')),
+  secret_key text not null,
+  secret_value text,
+  secret_json jsonb not null default '{}'::jsonb,
+  provider text,
+  last_rotated_at timestamptz,
+  created_at timestamptz not null default now(),
+  updated_at timestamptz not null default now(),
+  unique (secret_scope, secret_key)
+);
+
+comment on table app_private.platform_secrets is
+  'Private platform-level secrets for SaaS operations. API responses must expose only secretRef/masked metadata.';
+
+create table if not exists public.platform_audit_notification_channels (
+  id uuid primary key default gen_random_uuid(),
+  channel_code text not null unique,
+  name text not null,
+  description text,
+  enabled boolean not null default true,
+  provider text not null default 'generic'
+    check (provider in ('generic', 'dingtalk', 'feishu', 'wecom')),
+  webhook_url text not null,
+  secret_ref text,
+  min_severity text not null default 'medium'
+    check (min_severity in ('low', 'medium', 'high', 'critical')),
+  status_filter text[] not null default array['open']::text[],
+  action_patterns text[] not null default '{}'::text[],
+  tenant_ids uuid[] not null default '{}'::uuid[],
+  timeout_sec integer not null default 10 check (timeout_sec between 1 and 60),
+  metadata jsonb not null default '{}'::jsonb,
+  created_at timestamptz not null default now(),
+  updated_at timestamptz not null default now(),
+  constraint platform_audit_notification_status_filter_check
+    check (status_filter <@ array['open', 'acknowledged', 'resolved', 'ignored']::text[])
+);
+
+create table if not exists public.platform_audit_notification_events (
+  id uuid primary key default gen_random_uuid(),
+  channel_id uuid not null references public.platform_audit_notification_channels(id) on delete cascade,
+  alert_id uuid not null references public.platform_audit_alerts(id) on delete cascade,
+  audit_log_id uuid references public.audit_logs(id) on delete set null,
+  provider text not null default 'generic'
+    check (provider in ('generic', 'dingtalk', 'feishu', 'wecom')),
+  status text not null default 'pending'
+    check (status in ('pending', 'processing', 'sent', 'retrying', 'failed', 'discarded')),
+  attempts integer not null default 0 check (attempts >= 0),
+  scheduled_at timestamptz not null default now(),
+  next_attempt_at timestamptz,
+  last_attempt_at timestamptz,
+  sent_at timestamptz,
+  last_error text,
+  last_http_code integer,
+  last_response_summary text,
+  request_payload jsonb not null default '{}'::jsonb,
+  metadata jsonb not null default '{}'::jsonb,
+  created_at timestamptz not null default now(),
+  updated_at timestamptz not null default now(),
+  unique (channel_id, alert_id)
+);
+
+create index if not exists idx_platform_audit_notification_channels_enabled
+  on public.platform_audit_notification_channels(enabled, min_severity, channel_code);
+
+create index if not exists idx_platform_audit_notification_events_due
+  on public.platform_audit_notification_events(status, coalesce(next_attempt_at, scheduled_at), created_at);
+
+create index if not exists idx_platform_audit_notification_events_alert
+  on public.platform_audit_notification_events(alert_id, status, created_at desc);
+
+create index if not exists idx_platform_audit_notification_events_channel
+  on public.platform_audit_notification_events(channel_id, status, created_at desc);
+
+create index if not exists idx_platform_secrets_lookup
+  on app_private.platform_secrets(secret_scope, secret_key);
+
+alter table app_private.platform_secrets enable row level security;
+alter table public.platform_audit_notification_channels enable row level security;
+alter table public.platform_audit_notification_events enable row level security;
+
+drop policy if exists platform_admin_platform_secrets on app_private.platform_secrets;
+create policy platform_admin_platform_secrets on app_private.platform_secrets
+  for all
+  using (app.is_platform_admin())
+  with check (app.is_platform_admin());
+
+drop policy if exists platform_admin_audit_notification_channels on public.platform_audit_notification_channels;
+create policy platform_admin_audit_notification_channels on public.platform_audit_notification_channels
+  for all
+  using (app.is_platform_admin())
+  with check (app.is_platform_admin());
+
+drop policy if exists platform_admin_audit_notification_events on public.platform_audit_notification_events;
+create policy platform_admin_audit_notification_events on public.platform_audit_notification_events
+  for all
+  using (app.is_platform_admin())
+  with check (app.is_platform_admin());
+
+drop trigger if exists set_updated_at on app_private.platform_secrets;
+create trigger set_updated_at
+  before update on app_private.platform_secrets
+  for each row execute function app.touch_updated_at();
+
+drop trigger if exists set_updated_at on public.platform_audit_notification_channels;
+create trigger set_updated_at
+  before update on public.platform_audit_notification_channels
+  for each row execute function app.touch_updated_at();
+
+drop trigger if exists set_updated_at on public.platform_audit_notification_events;
+create trigger set_updated_at
+  before update on public.platform_audit_notification_events
+  for each row execute function app.touch_updated_at();