feat: 新增工具插件、系统日志、workflow配置及前端优化

1. 新增工具插件(edit_file, python_executor, search_file, shell_executor, write_file)
2. 新增系统事件日志模块和API
3. 新增workflow配置文件和详情API
4. 前端增加SSE、错误边界、设置引导等组件
5. 优化认证加密、速率限制、配置加载等工具模块
6. 删除废弃的cluster和health API
7. 补充单元测试和集成测试

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

frontend/src/App.tsx

@@ -1,7 +1,8 @@
-import { useEffect } from 'react';
+import { useEffect, useState } from 'react';
 import i18n from './i18n';
 import { TopBar } from './components/Layout/TopBar';
 import { CollapsibleSidebar } from './components/Layout/CollapsibleSidebar';
+import { SetupGuideModal } from './components/Layout/SetupGuideModal';
 import { SettingsLayout } from './components/Settings/SettingsLayout';
 import { AgentLayout } from './components/Agent/AgentLayout';
 import { PluginLayout } from './components/Plugin/PluginLayout';
@@ -19,6 +20,7 @@ function App() {
     isAuthenticated,
     setIsAuthenticated,
     mode,
+    setMode,
     showSettings,
     workTab,
     agentTab,
@@ -27,6 +29,7 @@ function App() {
   } = useAppStore();
 
   const { loadSessions } = useChatStore();
+  const [showSetupGuide, setShowSetupGuide] = useState(false);
 
   useEffect(() => {
     applyTheme();
@@ -52,6 +55,7 @@ function App() {
   useEffect(() => {
     if (isAuthenticated) {
       loadSessions();
+      setShowSetupGuide(true);
     }
   }, [isAuthenticated, loadSessions]);
 
@@ -63,6 +67,15 @@ function App() {
     <div className="flex flex-col h-screen w-screen bg-bg-primary text-text-primary font-sans overflow-hidden">
       <TopBar />
 
+      {showSetupGuide && (
+        <SetupGuideModal
+          onClose={() => setShowSetupGuide(false)}
+          onNavigateToAgent={() => {
+            setMode('agent');
+          }}
+        />
+      )}
+
       <div className="flex flex-1 overflow-hidden relative">
         {showSettings ? (
           <SettingsLayout />