docs(directory-picker): record the Remote transport

docs/capability-seams.zh.md

@@ -42,6 +42,7 @@ flowchart LR
   svc_sessionController["ctx.sessionController<br/>Host Session Remote controller"]
   pkg_api_workspace_controller["api-workspace-controller"]
   svc_workspaceController["ctx.workspaceController<br/>Host Workspace Remote controller"]
+  svc_directoryPickerController["ctx.directoryPickerController<br/>Host directory-picking Remote controller"]
   svc_invariants["ctx.invariants<br/>Package-owned invariant registry"]
   pkg_scope["scope"]
   pkg_typert_registry["typert-registry"]
@@ -219,6 +220,7 @@ flowchart LR
   pkg_agent_presets --> svc_agentPresets
   pkg_api_gateway --> svc_typertGateway
   pkg_api_session_controller --> svc_sessionController
+  pkg_api_workspace_controller --> svc_directoryPickerController
   pkg_api_workspace_controller --> svc_workspaceController
   pkg_attachment --> svc_attachments
   pkg_attachment_local --> svc_attachments
@@ -350,7 +352,7 @@ flowchart LR
   svc_credentials --> pkg_llm_deepseek
   svc_credentials --> pkg_llm_pi_ai
   svc_deepseekLlmApiExtensions --> pkg_llm_deepseek
-  svc_directoryPicker --> pkg_host_apiproxy
+  svc_directoryPicker --> pkg_api_workspace_controller
   svc_dynamicCordisRunner --> pkg_tool_cordis
   svc_e2b --> pkg_fs_e2b
   svc_e2b --> pkg_subprocess_e2b
@@ -461,6 +463,7 @@ flowchart LR
 | `ctx.sessions` | `core` | [`session`](../packages/core/session) | - | [`agent-loop`](../packages/core/agent-loop), [`agent`](../packages/core/agent), [`session-persistence`](../packages/session/session-persistence), [`session-query`](../packages/session-query/session-query), [`session-query-sqlite`](../packages/session-query/session-query-sqlite), [`subagent-in-process-driver`](../packages/subagent/subagent-in-process-driver), [`invariants`](../packages/runtime-diagnostics/invariants), [`message-feedback`](../packages/feedback/message-feedback) | - | 拥有仅追加的 Session 实例，并发出持久的会话事件流。 |
 | `ctx.sessionController` | `core` | [`api-session-controller`](../packages/api/session-controller) | - | [`host-apiproxy`](../packages/host/apiproxy) | - | 负责 Session 命令、冷读取、持久事件跟随、实时控制状态与 Agent 激活策略；apiProxy 在需要 Session 上下文的领域中复用其检查和 Agent 解析操作。 |
 | `ctx.workspaceController` | `core` | [`api-workspace-controller`](../packages/api/workspace-controller) | - | - | - | 通过生成的 Remote namespace 负责 Workspace 命令和可在重连后收敛的 Workspace 状态投递。 |
+| `ctx.directoryPickerController` | `core` | [`api-workspace-controller`](../packages/api/workspace-controller) | - | - | - | 把选目录 seam 送上线：能力门禁、取消传播，以及浏览器目录流程用于分支判断的 seam 错误码。 |
 | `ctx.invariants` | `core` | [`invariants`](../packages/runtime-diagnostics/invariants) | - | [`session`](../packages/core/session), [`agent`](../packages/core/agent), [`scope`](../packages/core/scope), [`agent-loop`](../packages/core/agent-loop) | - | 配套子路径注册所属包本地的检查；该服务负责选择、唯一性、子 fiber，以及标明所属包的失败。 |
 | `ctx.typert` | `core` | [`typert-registry`](../packages/typert/registry) | - | [`typert-loader`](../packages/typert/loader), [`api-gateway`](../packages/api/gateway) | - | 插件直接或通过 dsh-typert-loader 注册实时 zod 贡献；API 网关消费调用描述符和提供方，其他运行时消费方则在各自边界查询 schema 与反射元数据。 |
 | `ctx.typertGateway` | `core` | [`api-gateway`](../packages/api/gateway) | - | - | - | 将生成的 Remote 描述符与实时 Cordis 服务关联，解析已注册的身份，并通过共享的 Connection RPC 载体提供一元调用。 |
@@ -508,7 +511,7 @@ flowchart LR
 | `ctx.jobs` | `seam` | [`jobs`](../packages/jobs/jobs) | [`jobs-local`](../packages/jobs/jobs-local) | [`tool-bash`](../packages/shell/tool-bash), [`tool-terminal`](../packages/terminal/tool-terminal), [`tool-subagent`](../packages/subagent/tool-subagent), [`tool-jobs`](../packages/jobs/tool-jobs) | - | 生产方（后台 bash、PTY 发送和 subagent 委派）登记正在运行的工作；tool-jobs 是面向模型的控制器，用于读取、列出和终止这些工作；jobs-local 是进程本地注册表。 |
 | `ctx.web` | `seam` | [`web`](../packages/web/web) | [`web-search-exa`](../packages/web/web-search-exa), [`web-search-perplexity`](../packages/web/web-search-perplexity), [`web-search-deepseek`](../packages/web/web-search-deepseek), [`web-fetch-http`](../packages/web/web-fetch-http) | [`tool-web`](../packages/web/tool-web) | - | 搜索和抓取提供方注册到同一个 ctx.web seam；tool-web 负责稳定的面向模型名称。 |
 | `ctx.spillStore` | `seam` | [`spill`](../packages/spill/spill) | [`spill-local`](../packages/spill/spill-local) | [`spill-policy`](../packages/spill/spill-policy) | - | 后端保存过大的工具文本，并返回面向模型的定位信息和取回提示；spill-policy 是 tools/post-execute 消费方，负责决定何时 spill。 |
-| `ctx.directoryPicker` | `seam` | [`host-directory-picker`](../packages/host/directory-picker) | [`host-directory-picker-native`](../packages/host/directory-picker-native), [`host-directory-picker-browse`](../packages/host/directory-picker-browse) | [`host-apiproxy`](../packages/host/apiproxy) | - | 带判别标记的交互能力：原生后端在 Host 显示设备上打开一个操作系统选择器，浏览后端为应用内浏览器提供列表与创建原语；双端后端通过其浏览器侧填充 ui-workspace 目录流程的 slot（不通过协议发布）。 |
+| `ctx.directoryPicker` | `seam` | [`host-directory-picker`](../packages/host/directory-picker) | [`host-directory-picker-native`](../packages/host/directory-picker-native), [`host-directory-picker-browse`](../packages/host/directory-picker-browse) | [`api-workspace-controller`](../packages/api/workspace-controller) | - | 带判别标记的交互能力：原生后端在 Host 显示设备上打开一个操作系统选择器，浏览后端为应用内浏览器提供列表与创建原语；双端后端通过其浏览器侧填充 ui-workspace 目录流程的 slot（不通过协议发布）。 |
 | `ctx.webServer` | `core` | [`host-webserver`](../packages/host/webserver) | - | [`client-connection`](../packages/client/connection), [`client-modules`](../packages/client/modules), [`client-hmr`](../packages/client/hmr) | - | 普通的 node:http 载体：具名路由注册表、索引转换 tap，以及静态 dist 回退；Web 传输插件注册自己的路由。 |
 | `ctx.clientModules` | `core` | [`client-modules`](../packages/client/modules) | - | [`client-hmr`](../packages/client/hmr) | - | 通过增量 `dsh.client` 扫描组合 __DSH_BOOT__ 入口图，提供插件组合包，并通知重建／图变更订阅方。 |
 | `ctx.workflowEngine` | `seam` | [`workflow`](../packages/workflow/workflow) | [`workflow-worker-thread`](../packages/workflow/workflow-worker-thread) | [`tool-workflow`](../packages/workflow/tool-workflow), [`tool-ralph`](../packages/workflow/tool-ralph) | - | 每个上下文使用一个引擎，与 bash 相同，且没有具名提供方注册表；通用工作流与固定 Ralph 消费方启动运行，其中的 agent() 调用通过 ctx.subagents 扇出。 |