docs(web): document shipped fetch policy

apps/cli/reference/README.i18n.yaml

@@ -2,5 +2,5 @@
 # side as of the last confirmed-consistent state. Both languages carry equal authority;
 # after editing either side, bring the other along and re-record with:
 #   pnpm run verify-translation-pairing --write apps/cli/reference/README.md
-README.md: 0f407afa3b06d144681550d5096bf96c498e6451
-README.zh.md: bf4dc4ca9f49c1801d108234411123de459c0444
+README.md: bba31e9eeefe999a9b4ae7eee77573d74430fb98
+README.zh.md: 758e7d483593e0ccf60c48af25305f934dc60770

apps/cli/reference/README.md

@@ -88,7 +88,7 @@ New sessions default to the `workspace-write` permission preset. Bash and filesy
 
 ## Shared deployment behavior
 
-The base bundle mounts the native DeepSeek adapter, settings and credential providers, stable `web_search`, and disabled session telemetry. Provider credentials resolve from the inherited environment, `$DSH_HOME/.credentials.yaml`, the invoking directory's `.env`, then `$DSH_HOME/.env`; the managed document is never materialized into `process.env`, while both `.env` files are ordinary launch environment layers. Search uses `DEEPSEEK_API_KEY` and accepts `DEEPSEEK_SEARCH_BASE_URL`; `web_fetch` is disabled unless a patch layer inserts a provider and enables it.
+The base bundle mounts the native DeepSeek adapter, settings and credential providers, stable `web_search`, the public-only HTTP fetch provider and its one-shot approval policy, and disabled session telemetry. Provider credentials resolve from the inherited environment, `$DSH_HOME/.credentials.yaml`, the invoking directory's `.env`, then `$DSH_HOME/.env`; the managed document is never materialized into `process.env`, while both `.env` files are ordinary launch environment layers. Search uses `DEEPSEEK_API_KEY` and accepts `DEEPSEEK_SEARCH_BASE_URL`. The Web app's `cordis`, `code`, and `standard` agent presets expose `web_fetch`; restricted sandbox modes ask once per public URL call, `danger-full-access` delegates without asking, and approval policy `never` denies restricted calls without prompting.
 
 Session telemetry stays local by default. `DSH_TELEMETRY_MODE=FULL` streams every projected session event as OTLP/HTTP logs, while `DSH_TELEMETRY_MODE=FEEDBACK_ONLY` uploads a session-log suffix only when feedback is recorded. `DSH_TELEMETRY_OTLP_URL` selects another collector, and any non-empty `DSH_TELEMETRY_DISABLED` remains an authoritative hard opt-out. The shipped base has no telemetry redaction rule, so explicitly enabled exports can contain message text, tool arguments and results, and workspace paths; the [default-off Agent Note](../../../.agents/notes/implemented/feature/2026-08-10-telemetry-default-off.md) owns that deployment decision.
 

apps/cli/reference/README.zh.md

@@ -88,7 +88,7 @@ dsh web --help
 
 ## 共享部署行为
 
-基础组合包挂载原生 DeepSeek 适配器、settings 与凭据提供方、稳定的 `web_search` 和已禁用的会话遥测。提供方凭据依次从继承环境、`$DSH_HOME/.credentials.yaml`、调用目录的 `.env` 和 `$DSH_HOME/.env` 解析；受管文档从不物化进 `process.env`，而两个 `.env` 文件都是普通启动环境层。搜索使用 `DEEPSEEK_API_KEY` 并接受 `DEEPSEEK_SEARCH_BASE_URL`；只有 patch 层插入提供方并启用 `web_fetch` 后，该工具才可用。
+基础组合包挂载原生 DeepSeek 适配器、settings 与凭据提供方、稳定的 `web_search`、仅限公网的 HTTP fetch 提供方及其单次审批策略，以及已禁用的会话遥测。提供方凭据依次从继承环境、`$DSH_HOME/.credentials.yaml`、调用目录的 `.env` 和 `$DSH_HOME/.env` 解析；受管文档从不物化进 `process.env`，而两个 `.env` 文件都是普通启动环境层。搜索使用 `DEEPSEEK_API_KEY` 并接受 `DEEPSEEK_SEARCH_BASE_URL`。Web app 的 `cordis`、`code` 与 `standard` agent preset 会暴露 `web_fetch`；受限 sandbox mode 对每个公网 URL 调用询问一次，`danger-full-access` 不询问并继续执行，而审批策略 `never` 会在受限模式下直接拒绝且不显示提示。
 
 会话遥测默认留在本地。`DSH_TELEMETRY_MODE=FULL` 将每条已投影会话事件作为 OTLP/HTTP 日志流式发送，`DSH_TELEMETRY_MODE=FEEDBACK_ONLY` 则仅在记录反馈时上传会话日志后缀。`DSH_TELEMETRY_OTLP_URL` 选择其他 collector。任何非空的 `DSH_TELEMETRY_DISABLED` 都是具有最终效力的遥测强制关闭开关。随附基础配置没有遥测脱敏规则，因此显式启用的导出可能包含消息文本、工具参数和结果，以及 workspace 路径；相关部署决策见[默认关闭 Agent Note](../../../.agents/notes/implemented/feature/2026-08-10-telemetry-default-off.zh.md)。