refactor(frontend): P1-P2 架构统一 — utils/hooks/api 模块化

P1:
- utils/storage.ts、theme.ts、validate.ts + index 统一出口
- request/store/useTheme 接入 storage；清零 confirm/alert
- PipelineManager、TerminalAuditTab 拆分子模块（<700行红线）

P2:
- api/monitor、api/deploy 子目录化
- hooks/api 扩展：servers/pipelines/alerts/audit/sessionCommands
- PipelineManager、AuditOperationsTab 接入 TanStack Query

backend/static/assets/dashboard-H9WVvG1k.js

@@ -0,0 +1 @@
+import{h as t}from"./index-HuRw9UhJ.js";const a={getStats:async()=>t.get("/dashboard/stats"),getAlerts:async e=>t.get("/dashboard/recent-alerts",e?{limit:e}:void 0),getReleases:async e=>t.get("/dashboard/recent-releases",e?{limit:e}:void 0),getMetrics:async e=>t.get("/dashboard/metrics",e?{hours:e}:void 0)};export{a as d};