feat(agents): configurable executable for every built-in agent (#682)

Settings › Tools › Agents is split into Built-in and ACP Registry tabs. The Built-in tab lists every built-in agent with its status (custom executable or not found on PATH) and, for the selected agent, its default launch line, an Executable field (empty = auto-detect on PATH) with Browse and Reset, and its sign-in hint. Edits are staged with the Settings dialog and written on Apply / OK; Cancel discards them.

The override is written to <config>/agents/<id>.toml, keeping hand-written name, driver, args and env; resetting a command-only override removes the file. AgentProvider now exposes the program, args, built-in defaults, login hint and whether the command is editable: built-ins started through a package runner (npx) and registry installs are read-only, with the reason shown.

Fixes #596

Co-authored-by: a-rookie-of-C-language <[email protected]>

src/platform/locales/text/zh.json

@@ -1,9 +1,34 @@
 {
   "Edit {name}": "编辑 {name}",
   "The language server JDK ({path}) must be a full JDK with jdk.compiler, jdk.jdi and jdk.unsupported for Java language support and debugging. jdtls needs JDK {version} or newer. Download JDK {version}, choose a full JDK in {setting}, or set it to Auto.": "语言服务器 JDK（{path}）必须是包含 jdk.compiler、jdk.jdi 和 jdk.unsupported 的完整 JDK，才能支持 Java 语言功能和调试。jdtls 需要 JDK {version} 或更高版本。请下载 JDK {version}，在 {setting} 中选择完整 JDK，或设为自动。",
+  "ACP Registry": "ACP 注册表",
   "Apple's clangd does not run clang-tidy, so checks from .clang-tidy are not shown. Install clangd (LLVM) to get them.": "Apple 的 clangd 不运行 clang-tidy，因此不会显示 .clang-tidy 中配置的检查。请安装 clangd（LLVM）以启用这些检查。",
+  "Auto-detect ({defaultProgram})": "自动检测（{defaultProgram}）",
+  "Built-in": "内置",
+  "Built-in agents": "内置智能体",
+  "Custom executable": "自定义可执行文件",
+  "Found on PATH": "已在 PATH 中找到",
+  "Leave empty to find the executable on PATH. Changes apply to new sessions.": "留空以从 PATH 查找可执行文件。更改对新会话生效。",
   "Newer dependency version available": "有更新的依赖版本可用",
+  "Not found": "未找到",
+  "Not found on PATH": "未在 PATH 中找到",
   "Reports newer crate versions that Cargo.toml requirements do not already allow.": "报告 Cargo.toml 版本要求尚未允许的较新 crate 版本。",
+  "Run `auggie login` in a terminal.": "在终端中运行 `auggie login`。",
+  "Run `claude` in a terminal and sign in.": "在终端中运行 `claude` 并登录。",
+  "Run `codex login` in a terminal.": "在终端中运行 `codex login`。",
+  "Run `copilot` in a terminal and sign in.": "在终端中运行 `copilot` 并登录。",
+  "Run `cursor-agent login` in a terminal.": "在终端中运行 `cursor-agent login`。",
+  "Run `gemini` in a terminal and sign in.": "在终端中运行 `gemini` 并登录。",
+  "Run `goose configure` in a terminal.": "在终端中运行 `goose configure`。",
+  "Run `kimi` in a terminal and sign in.": "在终端中运行 `kimi` 并登录。",
+  "Run `kiro-cli login` in a terminal.": "在终端中运行 `kiro-cli login`。",
+  "Run `opencode auth login` in a terminal.": "在终端中运行 `opencode auth login`。",
+  "Run `qwen` in a terminal and sign in.": "在终端中运行 `qwen` 并登录。",
+  "Run `vibe` in a terminal and sign in.": "在终端中运行 `vibe` 并登录。",
+  "Sign in with the agent's own command line first.": "请先使用智能体自身的命令行登录。",
+  "This agent is configured in its agent file.": "此智能体在其智能体文件中配置。",
+  "This agent is installed from the ACP Registry. Manage its installation in the ACP Registry tab.": "此智能体从 ACP 注册表安装。请在 ACP 注册表标签页管理其安装。",
+  "This agent runs through a package runner (npm or uv) and has no executable to choose.": "此智能体通过包运行器（npm 或 uv）启动，无需选择可执行文件。",
   "Update to {latest}": "更新至 {latest}",
   "A newer version is available: {latest}": "有新版本可用：{latest}",
   "Kotlin bridge requires a Maven build root": "Kotlin 桥接需要 Maven 构建根目录",
@@ -1624,6 +1649,7 @@
   "oxfmt formatting timed out": "oxfmt 格式化超时",
   "{name} does not support selection formatting for this language; formatted the whole file": "{name} 不支持此语言的选区格式化，已格式化整个文件",
   "Formatting timed out": "格式化超时",
+  "{name} executable": "{name} 可执行文件",
   "{name}: Node.js is required": "{name}：需要 Node.js",
   "Formatter": "格式化工具",
   "JSON with Comments": "带注释的 JSON",