feat: AI告警智能分析接入真实后端告警事件 — 替换硬编码mock为动态分析

- AIAlertAnalyzer: 从 GET /alerts 加载真实告警事件(替代4条硬编码mock)
- mapAlertEvent: 映射AlertEvent→AlertItem(解析表达式提取指标/阈值,计算持续时间)
- generateAIAnalysis: 按指标类型(CPU/内存/磁盘/网络/服务)动态生成根因分析/影响评估/修复建议/自动修复脚本
- Dashboard: 服务器/告警增长率标签从硬编码改为数据驱动(基于error/week_count)
- DomainManager: 到期时间截取YYYY-MM-DD格式
- PipelineManager: 流水线创建传递stages/code/type字段

frontend/src/components/deploy/PipelineManager.tsx

@@ -195,11 +195,25 @@ export function PipelineManager() {
 
   const handleCreatePipeline = async () => {
     try {
+      const selectedTemplate = pipelineTemplates.find(t => t.id === newPipeline.template);
+      const stages = selectedTemplate
+        ? JSON.stringify(selectedTemplate.stages.map((name, i) => ({
+            id: `stage-${i + 1}`, name, status: 'pending', duration: '-', logs: [],
+          })))
+        : '';
+      const code = newPipeline.name
+        .toLowerCase()
+        .replace(/[^a-z0-9]/g, '-')
+        .replace(/-+/g, '-')
+        .replace(/^-|-$/g, '') || `pipeline-${Date.now()}`;
       await pipelineApi.createPipeline({
         name: newPipeline.name,
+        code,
         description: newPipeline.description,
-        repository: newPipeline.repository,
+        source: newPipeline.repository,
         branch: newPipeline.branch,
+        type: 'deploy',
+        stages,
       });
       setIsCreateDialogOpen(false);
       setNewPipeline({ name: '', description: '', repository: '', branch: 'main', template: '' });