feat(ui): 集成命令管理面板到 web 和 desktop

- 新增 CommandPanel 组件用于命令列表/搜索/CRUD
- 新增 CommandEditor 组件用于命令编辑/创建
- web/desktop 工具栏添加 Terminal 图标按钮
- 点击按钮打开命令管理面板

packages/desktop/src/App.tsx

@@ -7,6 +7,7 @@ import {
   Sidebar,
   FileBrowser,
   ConfigPanel,
+  CommandPanel,
   Toaster,
   listSessions,
   createSession,
@@ -19,6 +20,7 @@ export function App() {
   const [isInitializing, setIsInitializing] = useState(true);
   const [showFileBrowser, setShowFileBrowser] = useState(false);
   const [showConfig, setShowConfig] = useState(false);
+  const [showCommands, setShowCommands] = useState(false);
   const [sessionTitleUpdate, setSessionTitleUpdate] = useState<{ sessionId: string; name: string } | null>(null);
 
   // 初始化：加载或创建会话
@@ -89,6 +91,7 @@ export function App() {
               showFileBrowser={showFileBrowser}
               onToggleFileBrowser={() => setShowFileBrowser(!showFileBrowser)}
               onOpenConfig={() => setShowConfig(true)}
+              onOpenCommands={() => setShowCommands(true)}
             />
           ) : (
             <div className="flex-1 flex items-center justify-center h-full">
@@ -112,6 +115,9 @@ export function App() {
       {/* 配置面板 */}
       {showConfig && <ConfigPanel onClose={() => setShowConfig(false)} />}
 
+      {/* 命令面板 */}
+      {showCommands && <CommandPanel onClose={() => setShowCommands(false)} />}
+
       {/* Toast 通知 */}
       <Toaster />
     </div>