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/renderer/components/workspace-panel.ts

@@ -39,6 +39,17 @@ let fileTree: FileNode[] = [];
 let previewFile: { name: string; content: string; path: string } | null = null;
 let _counter = 0;
 
+/** 当前正在运行的 AI 命令（用于用户手动终止时通知 AI） */
+let currentAiCommand: string | null = null;
+
+/** 终止通知回调（由外部设置） */
+let onToolTerminated: ((command: string) => void) | null = null;
+
+/** 设置终止通知回调 */
+export function setOnToolTerminated(cb: (command: string) => void): void {
+  onToolTerminated = cb;
+}
+
 function genId(): string {
   return `ws_${Date.now()}_${++_counter}`;
 }
@@ -191,28 +202,6 @@ function bindEvents(): void {
   document.querySelector('#wsTabTerminal')?.addEventListener('click', () => switchTab('terminal'));
   document.querySelector('#wsTabFiles')?.addEventListener('click', () => switchTab('files'));
 
-  // 终端输入
-  const termInput = document.querySelector('#wsTermInput') as HTMLInputElement;
-  termInput?.addEventListener('keydown', (e) => {
-    if (e.key === 'Enter') {
-      e.preventDefault();
-      const cmd = termInput.value.trim();
-      if (cmd) {
-        executeCommand(cmd);
-        termInput.value = '';
-      }
-    }
-  });
-
-  // 执行按钮
-  document.querySelector('#wsExecBtn')?.addEventListener('click', () => {
-    const cmd = termInput?.value.trim();
-    if (cmd) {
-      executeCommand(cmd);
-      termInput.value = '';
-    }
-  });
-
   // 停止按钮
   document.querySelector('#wsStopBtn')?.addEventListener('click', killCurrentProcess);
 
@@ -274,36 +263,16 @@ function getActiveSession(): TerminalSession | undefined {
   return terminalSessions.find(s => s.id === activeTerminalId);
 }
 
-function executeCommand(command: string): void {
-  const session = getActiveSession();
-  if (!session) {
-    logError('工作空间执行失败', '无活跃终端会话');
-    return;
-  }
-
-  const bridge = window.metonaDesktop;
-  if (!bridge?.isDesktop) {
-    logError('工作空间执行失败', '非桌面环境');
-    return;
-  }
-
-  // 显示命令
-  session.lines.push({ type: 'system', text: `$ ${command}` });
-  session.running = true;
-  session.autoScroll = true;
-
-  renderTerminal();
-
-  const cwd = currentFileDir || workspaceDir;
-  logInfo('工作空间执行命令', `ID: ${session.id} | ${command.slice(0, 100)} | cwd: ${cwd}`);
-  bridge.workspace.exec({ id: session.id, command, cwd });
-}
-
 /** AI Tool Calling 命令输出 → 追加到活跃终端 */
 function appendToolOutput(command: string, stdout: string, stderr: string, exitCode: number | null): void {
   const session = getActiveSession();
   if (!session) return;
 
+  // 记录当前 AI 命令
+  currentAiCommand = command;
+  session.running = true;
+  updateHint();
+
   // 显示执行的命令
   session.lines.push({ type: 'system', text: `$ ${command} (AI)` });
 
@@ -325,12 +294,18 @@ function appendToolOutput(command: string, stdout: string, stderr: string, exitC
   const exitMsg = exitCode === 0 ? '✓ AI 命令执行成功' : `✗ AI 命令退出 (code: ${exitCode})`;
   session.lines.push({ type: 'system', text: exitMsg });
 
+  // 命令结束
+  session.running = false;
+  currentAiCommand = null;
+
   // 限制最大行数
   if (session.lines.length > 3000) {
     session.lines = session.lines.slice(-2000);
   }
 
   renderTerminal();
+  updateStopBtnState();
+  updateHint();
 }
 
 function appendTerminalOutput(sessionId: string, type: 'stdout' | 'stderr', data: string): void {
@@ -389,14 +364,32 @@ function handleProcessExit(sessionId: string, code: number | null): void {
 
 function killCurrentProcess(): void {
   const session = getActiveSession();
-  if (!session || !session.running) return;
+  if (!session) return;
 
   const bridge = window.metonaDesktop;
   if (!bridge?.isDesktop) return;
 
-  bridge.workspace.kill(session.id);
-  session.lines.push({ type: 'system', text: '■ 已发送终止信号' });
+  // 终止用户终端进程（如果有）
+  if (session.running) {
+    bridge.workspace.kill(session.id);
+  }
+
+  // 终止当前 AI 工具命令
+  bridge.workspace.killTool();
+
+  const cmd = currentAiCommand;
+  session.lines.push({ type: 'system', text: '■ 命令已手动终止' });
+  session.running = false;
+  currentAiCommand = null;
+
   renderTerminal();
+  updateStopBtnState();
+  updateHint();
+
+  // 通知 AI 命令被用户终止
+  if (cmd && onToolTerminated) {
+    onToolTerminated(cmd);
+  }
 }
 
 function clearTerminal(): void {
@@ -649,12 +642,23 @@ function renderPreview(): void {
 function updateStopBtnState(): void {
   const stopBtn = document.querySelector('#wsStopBtn') as HTMLButtonElement;
   if (!stopBtn) return;
-  const session = getActiveSession();
-  const running = session?.running || false;
+  const running = currentAiCommand !== null;
   stopBtn.disabled = !running;
   stopBtn.classList.toggle('active', running);
 }
 
+function updateHint(): void {
+  const hint = document.querySelector('#wsTermHint') as HTMLElement;
+  if (!hint) return;
+  if (currentAiCommand) {
+    hint.textContent = `⏳ AI 正在执行: ${currentAiCommand.slice(0, 40)}${currentAiCommand.length > 40 ? '...' : ''}`;
+    hint.classList.add('running');
+  } else {
+    hint.textContent = '等待 AI 执行命令...';
+    hint.classList.remove('running');
+  }
+}
+
 // ── 工具函数 ──
 function getFileIcon(name: string): string {
   const ext = name.split('.').pop()?.toLowerCase() || '';
@@ -676,23 +680,6 @@ function formatSize(bytes: number): string {
 
 // ── 外部调用接口 ──
 
-/** 从聊天区域调用：在工作空间执行命令 */
-export function execInWorkspace(command: string): void {
-  // 切换到终端 tab
-  activeTab = 'terminal';
-
-  // 使用当前活跃终端或创建新的
-  const session = getActiveSession();
-  if (session?.running) {
-    // 当前终端有进程在跑，新建一个
-    const num = terminalSessions.length + 1;
-    createTerminalSession(`终端 ${num}`);
-  }
-
-  renderPanel();
-  executeCommand(command);
-}
-
 /** 获取工作空间目录 */
 export function getWorkspaceDirPath(): string {
   return workspaceDir;