refactor: 工作空间去掉手动命令输入，终止时自动反馈 AI

- 移除工作空间终端的命令输入框和执行按钮
- 用户只能通过终止按钮中断卡住的 AI 命令
- 终止后自动通过 killTool IPC 终止进程，结果自动回传 AI
- 新增 workspace:killTool IPC 和 terminateCurrentToolCommand
- 新增终端底部状态提示（等待/执行中）
- 修复工作空间面板顶部对齐（90px → 92px）

src/main/ipc.ts

@@ -22,7 +22,7 @@ import {
   handleRunCommand
 } from './tool-handlers.js';
 import { getAllowedDirs, getBlockedDirs, setAllowedDirs } from './tool-security.js';
-import { startProcess, killProcess, getWorkspaceDir, setWorkspaceDir, listWorkspaceDir, execWorkspaceCommand } from './workspace.js';
+import { startProcess, killProcess, getWorkspaceDir, setWorkspaceDir, listWorkspaceDir, execWorkspaceCommand, terminateCurrentToolCommand } from './workspace.js';
 
 export function setupIPC(): void {
   ipcMain.handle('dialog:openFile', async (_, options?: { filters?: Array<{ name: string; extensions: string[] }> }) => {
@@ -177,4 +177,11 @@ export function setupIPC(): void {
     sendLog('info', `🔧 workspace:execTool`, `${command.slice(0, 200)} | cwd: ${cwd || '默认'}`);
     return execWorkspaceCommand(command, cwd);
   });
+
+  // 终止当前 AI 工具命令
+  ipcMain.handle('workspace:killTool', async () => {
+    const killed = terminateCurrentToolCommand();
+    sendLog('info', `🔧 workspace:killTool`, killed ? '已终止' : '无正在运行的工具命令');
+    return { killed };
+  });
 }

src/main/preload.ts

@@ -61,6 +61,8 @@ contextBridge.exposeInMainWorld('metonaDesktop', {
     },
     /** 无超时命令执行，用于 AI Tool Calling */
     execTool: (command: string, cwd?: string) => ipcRenderer.invoke('workspace:execTool', command, cwd),
+    /** 终止当前 AI 工具命令 */
+    killTool: () => ipcRenderer.invoke('workspace:killTool'),
     /** AI Tool Calling 命令输出 → 同步到工作空间终端 */
     onToolOutput: (callback: (data: { command: string; stdout: string; stderr: string; exitCode: number | null }) => void) => {
       ipcRenderer.on('workspace:toolOutput', (_: unknown, data: { command: string; stdout: string; stderr: string; exitCode: number | null }) => callback(data));

src/main/workspace.ts

@@ -20,6 +20,9 @@ export const DEFAULT_WORKSPACE_DIR = path.join(app.getPath('userData'), 'workspa
 /** 活跃进程 Map */
 const activeProcesses = new Map<string, ChildProcess>();
 
+/** 当前 AI 工具命令进程 ID（用于用户手动终止） */
+let _currentToolProcessId: string | null = null;
+
 /** 确保工作空间目录存在 */
 export function ensureWorkspaceDir(): void {
   if (!fs.existsSync(DEFAULT_WORKSPACE_DIR)) {
@@ -253,6 +256,7 @@ export function execWorkspaceCommand(
       });
 
       activeProcesses.set(cmdId, proc);
+      _currentToolProcessId = cmdId;
 
       proc.stdout.on('data', (data: Buffer) => {
         if (stdoutBuf.length < MAX_OUTPUT) {
@@ -280,6 +284,7 @@ export function execWorkspaceCommand(
 
       proc.on('close', (code) => {
         activeProcesses.delete(cmdId);
+        if (_currentToolProcessId === cmdId) _currentToolProcessId = null;
         const duration = Date.now() - startTime;
         sendLog(
           code === 0 ? 'success' : 'warn',
@@ -299,6 +304,7 @@ export function execWorkspaceCommand(
 
       proc.on('error', (err) => {
         activeProcesses.delete(cmdId);
+        if (_currentToolProcessId === cmdId) _currentToolProcessId = null;
         const duration = Date.now() - startTime;
         sendLog('error', `🔧 execWorkspaceCommand 失败`, `${cmdId} | ${err.message}`);
         resolve({
@@ -334,3 +340,14 @@ export function execWorkspaceCommand(
 export function terminateWorkspaceCommand(commandId: string): boolean {
   return killProcess(commandId);
 }
+
+/**
+ * 终止当前正在运行的 AI 工具命令
+ * @returns 是否成功终止
+ */
+export function terminateCurrentToolCommand(): boolean {
+  if (!_currentToolProcessId) return false;
+  const id = _currentToolProcessId;
+  _currentToolProcessId = null;
+  return killProcess(id);
+}