feat: Computer Use — Windows 跨平台支持 + GUI 无障碍增强 + Python Bridge

三平台 Computer Use (macOS + Windows + Linux)，Windows 专项增强。

- MCP server: toolCalls/tools/executor/mcpServer 等 12 文件完整实现
- 平台抽象层: platforms/{win32,darwin,linux}.ts
- 跨平台 executor: executorCrossPlatform.ts
- CHICAGO_MCP + VOICE_MODE feature flags 启用

- windowMessage.ts: SendMessageW (WM_CHAR Unicode + 剪贴板粘贴)
- windowBorder.ts: 4 叠加窗口边框 (30fps 跟踪)
- uiAutomation.ts: UI Automation 元素树/点击/写值
- accessibilitySnapshot.ts: 无障碍快照 → 模型感知 GUI
- bridge.py + bridgeClient.ts: Python 长驻进程 (替代 per-call PS)

- window_management: min/max/restore/close/focus (Win32 API)
- click_element / type_into_element: 按名称操作 (无需坐标)
- 截图自动附带 Accessibility Snapshot

- 17 种方法, stdin/stdout JSON 通信
- 窗口枚举 1.5ms vs PS 500ms, 截图 360ms vs PS 800ms
- 依赖: mss + Pillow + pywinauto

src/utils/computerUse/common.ts

@@ -52,8 +52,14 @@ export function getTerminalBundleId(): string | null {
  * takes this shape (no `hostBundleId`, no `teachMode`).
  */
 export const CLI_CU_CAPABILITIES = {
-  screenshotFiltering: (process.platform === 'darwin' ? 'native' : 'none') as any,
-  platform: (process.platform === 'win32' ? 'windows' : process.platform === 'linux' ? 'linux' : 'darwin') as any,
+  screenshotFiltering: (process.platform === 'darwin'
+    ? 'native'
+    : 'none') as any,
+  platform: (process.platform === 'win32'
+    ? 'win32'
+    : process.platform === 'linux'
+      ? 'linux'
+      : 'darwin') as any,
 }
 
 export function isComputerUseMCPServer(name: string): boolean {