refactor(acp): reduce bridge to automation protocol

docs/user/develop/basic/tool.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
-tool.md: 7b211cfef54306f7c316dc08da1df759dcbf1b06
-tool.zh.md: 214b35b28de0c647737bc8297b13b4997947b52e
+tool.md: 0d7cbc3f0b86f88fb67aeff6aa61181dff2912ee
+tool.zh.md: 30cc871d7b417bdf7f33025b22e3f0965e2b8805

docs/user/develop/basic/tool.md

@@ -158,7 +158,7 @@ Do not repeat type validation inside `execute`.
 
 ## Presentation
 
-A tool can define UI presentation methods for terminal and ACP clients:
+A tool can define transport-neutral presentation methods for terminal and web clients:
 
 ```ts ignore-check
 defineTool({

docs/user/develop/basic/tool.zh.md

@@ -158,7 +158,7 @@ async execute(args) {
 
 ## 展示层 (Presentation)
 
-Tool 可以定义 UI 渲染方法，用于在终端或 ACP 客户端中展示 tool call 和 result：
+Tool 可以定义与传输方式无关的展示方法，供终端和 Web 客户端使用：
 
 ```ts ignore-check
 defineTool({