[codex] 收紧退役模块边界并稳定 CI 门禁

.gitignore

@@ -19,6 +19,7 @@ coverage/
 .supabase/
 supabase/.temp/
 supabase/.branches/
+.claude/
 
 # Editor and operating system files
 .vscode/

AGENTS.md

@@ -0,0 +1,7 @@
+# Agent Instructions
+
+Before taking any action in this repository, read [`agent.md`](./agent.md) completely and follow it as the root operational contract.
+
+All development, testing, browser work, GitHub operations, deployment, monitoring, synchronization maintenance, backup orchestration, and incident response are performed by Agents. The project owner only supplies credentials, MFA/CAPTCHA, legal or product decisions, and explicit approval for irreversible or high-risk production changes.
+
+More specific `AGENTS.md` files may add directory-level constraints but must not weaken the root contract.

LICENSE

@@ -0,0 +1,201 @@
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PRIVACY.md

@@ -1,6 +1,6 @@
 # USTS ACM Land 隐私说明
 
-更新日期：2026 年 8 月 2 日
+更新日期：2026 年 8 月 9 日
 
 ## 收集的数据
 
@@ -25,13 +25,13 @@
 
 GitHub Pages 托管静态前端，Supabase 提供认证、数据库和服务端函数。同步时会使用成员填写的平台账号查询 Codeforces、牛客、AtCoder、AtCoder Problems、XCPC ELO、洛谷和 QOJ；牛客反自动化回退查询和 QOJ 临时登录使用 Firecrawl。成员填写或修改 QQ 后，只有服务端会把 QQ 号发送给腾讯 QQ 头像接口以获取头像；浏览器不会取得该请求地址，本站只在私有存储中保留规范化 WebP 头像和不可逆来源摘要。QOJ 登录会把专用服务账号和目标用户名发送给 Firecrawl，但不会发送成员邮箱、QQ 或本站密码；本站创建临时浏览器时显式关闭会话录制和直播，不使用持久 profile，并在每次 attempt 后主动删除会话。完整字段、认证方式和保留边界见[第三方数据来源说明](./docs/third-party-data-sources.md)。各服务对请求数据的处理同时受其自身政策和生产配置约束。
 
-## AI 学习助手
+## 遗留 AI 学习助手数据
 
-AI 学习助手仅向管理员单独授权的成员开放。成员提交的问题、当前会话中一并发送的可见上下文，以及本站固定的学习助手指令，会由服务端转发给管理员配置的中转站及其上游模型。浏览器不会获得中转站 Base URL、API Key 或服务端指令，也不能自行选择模型或覆盖这些配置。
+AI 学习助手已经退出当前产品范围。生产入口、成员授权、消息请求和图片输入均保持关闭，本站不再把新的成员问题、会话上下文或固定学习助手指令发送给中转站及其上游模型。历史运行期间，该功能只向管理员单独授权的成员开放；浏览器不会获得当时配置的中转站 Base URL、API Key 或服务端指令，也不能自行选择模型或覆盖这些配置。
 
-为支持刷新恢复和历史会话，本站会在 Supabase 私有数据库中保存会话标题、成员问题和模型可见回复。每个账号最多保留 100 个会话，单个会话最多 120 条消息且序列化内容不超过 1 MiB；会话最后活动超过 180 天后自动删除，成员也可以随时删除单个会话。历史读取、修改和删除接口只绑定当前登录账号，不接受目标成员 ID；管理员默认也不能读取其他成员的对话正文。永久注销账号时，全部会话和消息随账号级联删除。
+历史运行期间形成的会话标题、成员问题和模型可见回复仍保存在 Supabase 私有数据库中，并继续受原有保留和删除规则约束。每个账号最多保留 100 个会话，单个会话最多 120 条消息且序列化内容不超过 1 MiB；会话最后活动超过 180 天后自动删除。当前关闭态不提供会话浏览或单会话删除入口；登录成员仍可在“我的资料”导出本人历史，永久注销账号时全部会话和消息随账号级联删除。遗留历史接口只绑定当前登录账号，不接受目标成员 ID；管理员默认也不能读取其他成员的对话正文。
 
-额度、并发控制和故障诊断使用另一套私有账本，保存成员 UUID、随机请求标识、不可逆内容指纹、请求状态、时间及聚合 Token 数。额度账本本身不保存可还原的对话正文。中转站和上游模型对请求内容的留存、训练使用、删除与跨境处理，仍受管理员最终选择的服务和该服务政策约束。请勿向学习助手发送密码、Cookie、Token、API Key、个人隐私、未公开比赛题目或其他不应交给第三方处理的内容。
+遗留额度、并发控制和故障诊断账本保存成员 UUID、随机请求标识、不可逆内容指纹、请求状态、时间及聚合 Token 数，不保存可还原的对话正文。历史请求内容在中转站和上游模型处的留存、训练使用、删除与跨境处理，受当时所选服务及其政策约束；功能关闭后不再产生新的模型请求。
 
 ## 导出个人数据