refactor: 移除SQL审计+站内导航，AIOps子菜单6→3精简，服务器批量删除加确认框

- 移除SQL审计菜单和路由
- 移除站内导航菜单和路由
- AIOps智能子菜单从6个精简为3个：智能助手、告警分析、容量预测
- 移除智能运维中心(空壳)、故障诊断(与告警分析重复)、脚本生成(并入助手)
- 服务器删除/批量删除添加Dialog确认框
- 删除/批量删除添加toast成功反馈

frontend/src/App.tsx

@@ -17,19 +17,14 @@ import { TopologyView } from '@/components/k8s/TopologyView';
 import { AlertManager } from '@/components/monitor/AlertManager';
 import { AppReleaseManager } from '@/components/deploy/AppRelease';
 import { ApprovalFlowManager } from '@/components/approval/ApprovalFlow';
-import { NavigationPage } from '@/components/navigation/NavigationPage';
 import { ScriptManager } from '@/components/automation/ScriptManager';
 import { SystemManager } from '@/components/system/SystemManager';
 import { PipelineManager } from '@/components/deploy/PipelineManager';
 import { ReleaseManager } from '@/components/deploy/ReleaseManager';
 import { CronJobManager } from '@/components/automation/CronJobManager';
 import AnsibleManager from '@/components/automation/AnsibleManager';
-import SQLAuditManager from '@/components/audit/SQLAuditManager';
 import { AIOpsAssistant } from '@/components/aiops/AIOpsAssistant';
-import { AIOpsHub } from '@/components/aiops/AIOpsHub';
 import { AIAlertAnalyzer } from '@/components/aiops/AIAlertAnalyzer';
-import { AIScriptGenerator } from '@/components/aiops/AIScriptGenerator';
-import { AIFaultDiagnosis } from '@/components/aiops/AIFaultDiagnosis';
 import { AIPredictiveAnalytics } from '@/components/aiops/AIPredictiveAnalytics';
 import AlertCenter from '@/components/monitor/alert-center/AlertCenter';
 import TraceManager from '@/components/monitor/trace/TraceManager';
@@ -80,18 +75,13 @@ function App() {
             <Route path="alerts" element={<AlertManager />} />
             <Route path="logs" element={<AlertManager />} />
             <Route path="approval" element={<ApprovalFlowManager />} />
-            <Route path="navigation" element={<NavigationPage />} />
             {/* 自动化运维 */}
             <Route path="cronjobs" element={<CronJobManager />} />
             <Route path="scripts" element={<ScriptManager />} />
             <Route path="ansible" element={<AnsibleManager />} />
-            <Route path="sql-audit" element={<SQLAuditManager />} />
             {/* AIOps智能 */}
-            <Route path="ai-hub" element={<AIOpsHub />} />
             <Route path="ai-assistant" element={<AIOpsAssistant />} />
             <Route path="ai-alert-analyzer" element={<AIAlertAnalyzer />} />
-            <Route path="ai-script-generator" element={<AIScriptGenerator />} />
-            <Route path="ai-fault-diagnosis" element={<AIFaultDiagnosis />} />
             <Route path="ai-predictive" element={<AIPredictiveAnalytics />} />
             <Route path="users" element={<SystemManager />} />
             <Route path="roles" element={<SystemManager />} />