feat(web): 移除 Settings 按钮，在 Header 直接显示工作目录

- 移除 ConfigPanel 及其入口按钮
- 在 Chat 页面 Header 左侧显示当前工作目录
- 初始化时并行获取会话列表和工作目录

packages/web/src/App.tsx

@@ -8,7 +8,6 @@ import { useState, useEffect, useCallback } from 'react';
 import {
   Sidebar,
   FileBrowser,
-  ConfigPanel,
   CommandPanel,
   MCPPanel,
   HooksPanel,
@@ -19,6 +18,7 @@ import {
   ThemeProvider,
   listSessions,
   createSession,
+  getWorkingDirectory,
   type Session,
 } from '@ai-assistant/ui';
 import { ChatPage } from './pages/Chat';
@@ -27,7 +27,6 @@ export function App() {
   const [currentSessionId, setCurrentSessionId] = useState<string | null>(null);
   const [isInitializing, setIsInitializing] = useState(true);
   const [showFileBrowser, setShowFileBrowser] = useState(false);
-  const [showConfig, setShowConfig] = useState(false);
   const [showCommands, setShowCommands] = useState(false);
   const [showMCP, setShowMCP] = useState(false);
   const [showHooks, setShowHooks] = useState(false);
@@ -35,14 +34,26 @@ export function App() {
   const [showCheckpoints, setShowCheckpoints] = useState(false);
   const [showProviders, setShowProviders] = useState(false);
   const [sessionTitleUpdate, setSessionTitleUpdate] = useState<{ sessionId: string; name: string } | null>(null);
+  const [workingDirectory, setWorkingDirectory] = useState<string>('');
 
-  // 初始化：加载会话（只在首次启动时自动创建）
+  // 初始化：加载会话和工作目录
   useEffect(() => {
     const HAS_SESSIONS_KEY = 'ai-assistant-has-sessions';
 
     async function init() {
       try {
-        const { data: sessions } = await listSessions();
+        // 并行获取会话和工作目录
+        const [sessionsResult, workdirResult] = await Promise.all([
+          listSessions(),
+          getWorkingDirectory().catch(() => null),
+        ]);
+
+        const { data: sessions } = sessionsResult;
+
+        // 设置工作目录
+        if (workdirResult?.data?.workingDirectory) {
+          setWorkingDirectory(workdirResult.data.workingDirectory);
+        }
 
         if (sessions.length > 0) {
           // 有会话，选择最近的
@@ -130,13 +141,13 @@ export function App() {
                 responsive
                 showFileBrowser={showFileBrowser}
                 onToggleFileBrowser={() => setShowFileBrowser(!showFileBrowser)}
-                onOpenConfig={() => setShowConfig(true)}
                 onOpenCommands={() => setShowCommands(true)}
                 onOpenMCP={() => setShowMCP(true)}
                 onOpenHooks={() => setShowHooks(true)}
                 onOpenAgents={() => setShowAgents(true)}
                 onOpenCheckpoints={() => setShowCheckpoints(true)}
                 onOpenProviders={() => setShowProviders(true)}
+                workingDirectory={workingDirectory}
               />
             ) : (
               <div className="flex-1 flex items-center justify-center h-full">
@@ -182,9 +193,6 @@ export function App() {
           )}
         </div>
 
-        {/* 配置面板 */}
-        {showConfig && <ConfigPanel onClose={() => setShowConfig(false)} responsive />}
-
         {/* 命令面板 */}
         {showCommands && <CommandPanel onClose={() => setShowCommands(false)} responsive />}