fix: 恢复链路追踪和监控大屏(监控模块),仅移除SQL审计;修复AlertCenter崩溃

frontend/src/App.tsx

@@ -32,6 +32,8 @@ import { AIFaultDiagnosis } from '@/components/aiops/AIFaultDiagnosis';
 import { AIPredictiveAnalytics } from '@/components/aiops/AIPredictiveAnalytics';
 import LogManager from '@/components/monitor/logs/LogManager';
 import AlertCenter from '@/components/monitor/alert-center/AlertCenter';
+import TraceManager from '@/components/monitor/trace/TraceManager';
+import GrafanaDashboard from '@/components/monitor/dashboard/GrafanaDashboard';
 import { AgentMonitor } from '@/components/agent/AgentMonitor';
 import { AgentAlerts } from '@/components/agent/AgentAlerts';
 
@@ -73,6 +75,8 @@ function App() {
             <Route path="metrics" element={<AlertManager />} />
             <Route path="alert-center" element={<AlertCenter />} />
             <Route path="logs-monitor" element={<LogManager />} />
+            <Route path="trace" element={<TraceManager />} />
+            <Route path="grafana" element={<GrafanaDashboard />} />
             <Route path="agent-alerts" element={<AgentAlerts />} />
             <Route path="alerts" element={<AlertManager />} />
             <Route path="logs" element={<AlertManager />} />

frontend/src/components/layout/Sidebar.tsx

@@ -32,6 +32,7 @@ import {
   Activity,
   BarChart3,
   GitBranch,
+  Monitor,
   Bot,
   AlertTriangle,
 } from 'lucide-react';
@@ -90,6 +91,8 @@ const menuItems: MenuItem[] = [
       { id: 'metrics', name: '指标监控', icon: Cpu, path: '/metrics' },
       { id: 'alert-center', name: '告警中心', icon: Bell, path: '/alert-center' },
       { id: 'logs-monitor', name: '日志能力', icon: FileCode, path: '/logs-monitor' },
+      { id: 'trace', name: '链路追踪', icon: GitBranch, path: '/trace' },
+      { id: 'grafana', name: '监控大屏', icon: Monitor, path: '/grafana' },
       { id: 'agent-alerts', name: 'Agent告警', icon: AlertTriangle, path: '/agent-alerts' },
     ],
   },